fx build fix

2025-11-08 00:40:01 +01:00
parent 49b86efecb
commit d367dddbbd
98 changed files with 3983 additions and 5063 deletions
--- a/api/notification/internal/ampli/ampli.go
+++ b/api/notification/internal/ampli/ampli.go
@@ -0,0 +1,734 @@
+// ampli.go
+//
+// Ampli - A strong typed wrapper for your Analytics
+//
+// This file is generated by Amplitude.
+// To update run 'ampli pull backend'
+//
+// Required dependencies: github.com/amplitude/analytics-go@latest
+// Tracking Plan Version: 2
+// Build: 1.0.0
+// Runtime: go-ampli
+//
+// View Tracking Plan: https://data.eu.amplitude.com/profee/Profee%20Tips/events/main/latest
+//
+// Full Setup Instructions: https://data.eu.amplitude.com/profee/Profee%20Tips/implementation/main/latest/getting-started/backend
+//
+
+package ampli
+
+import (
+	"log"
+	"sync"
+
+	"github.com/amplitude/analytics-go/amplitude"
+)
+
+type (
+	EventOptions  = amplitude.EventOptions
+	ExecuteResult = amplitude.ExecuteResult
+)
+
+const (
+	IdentifyEventType      = amplitude.IdentifyEventType
+	GroupIdentifyEventType = amplitude.GroupIdentifyEventType
+
+	ServerZoneUS = amplitude.ServerZoneUS
+	ServerZoneEU = amplitude.ServerZoneEU
+)
+
+var (
+	NewClientConfig = amplitude.NewConfig
+	NewClient       = amplitude.NewClient
+)
+
+var Instance = Ampli{}
+
+type Environment string
+
+const (
+	EnvironmentProfeetips Environment = `profeetips`
+)
+
+var APIKey = map[Environment]string{
+	EnvironmentProfeetips: `c4e543cf70e8c83b85eb56e9a1d9b4b3`,
+}
+
+// LoadClientOptions is Client options setting to initialize Ampli client.
+//
+// Params:
+//   - APIKey: the API key of Amplitude project
+//   - Instance: the core SDK instance used by Ampli client
+//   - Configuration: the core SDK client configuration instance
+type LoadClientOptions struct {
+	APIKey        string
+	Instance      amplitude.Client
+	Configuration amplitude.Config
+}
+
+// LoadOptions is options setting to initialize Ampli client.
+//
+// Params:
+//   - Environment: the environment of Amplitude Data project
+//   - Disabled: the flag of disabled Ampli client
+//   - Client: the LoadClientOptions struct
+type LoadOptions struct {
+	Environment Environment
+	Disabled    bool
+	Client      LoadClientOptions
+}
+
+type baseEvent struct {
+	eventType  string
+	properties map[string]any
+}
+
+type Event interface {
+	ToAmplitudeEvent() amplitude.Event
+}
+
+func newBaseEvent(eventType string, properties map[string]any) baseEvent {
+	return baseEvent{
+		eventType:  eventType,
+		properties: properties,
+	}
+}
+
+func (event baseEvent) ToAmplitudeEvent() amplitude.Event {
+	return amplitude.Event{
+		EventType:       event.eventType,
+		EventProperties: event.properties,
+	}
+}
+
+var EmailOpened = struct {
+	Builder func() interface {
+		EmailType(emailType string) EmailOpenedBuilder
+	}
+}{
+	Builder: func() interface {
+		EmailType(emailType string) EmailOpenedBuilder
+	} {
+		return &emailOpenedBuilder{
+			properties: map[string]any{},
+		}
+	},
+}
+
+type EmailOpenedEvent interface {
+	Event
+	emailOpened()
+}
+
+type emailOpenedEvent struct {
+	baseEvent
+}
+
+func (e emailOpenedEvent) emailOpened() {
+}
+
+type EmailOpenedBuilder interface {
+	Build() EmailOpenedEvent
+}
+
+type emailOpenedBuilder struct {
+	properties map[string]any
+}
+
+func (b *emailOpenedBuilder) EmailType(emailType string) EmailOpenedBuilder {
+	b.properties[`emailType`] = emailType
+
+	return b
+}
+
+func (b *emailOpenedBuilder) Build() EmailOpenedEvent {
+	return &emailOpenedEvent{
+		newBaseEvent(`emailOpened`, b.properties),
+	}
+}
+
+var EmailSent = struct {
+	Builder func() interface {
+		Domain(domain string) interface {
+			EmailType(emailType string) EmailSentBuilder
+		}
+	}
+}{
+	Builder: func() interface {
+		Domain(domain string) interface {
+			EmailType(emailType string) EmailSentBuilder
+		}
+	} {
+		return &emailSentBuilder{
+			properties: map[string]any{},
+		}
+	},
+}
+
+type EmailSentEvent interface {
+	Event
+	emailSent()
+}
+
+type emailSentEvent struct {
+	baseEvent
+}
+
+func (e emailSentEvent) emailSent() {
+}
+
+type EmailSentBuilder interface {
+	Build() EmailSentEvent
+}
+
+type emailSentBuilder struct {
+	properties map[string]any
+}
+
+func (b *emailSentBuilder) Domain(domain string) interface {
+	EmailType(emailType string) EmailSentBuilder
+} {
+	b.properties[`domain`] = domain
+
+	return b
+}
+
+func (b *emailSentBuilder) EmailType(emailType string) EmailSentBuilder {
+	b.properties[`emailType`] = emailType
+
+	return b
+}
+
+func (b *emailSentBuilder) Build() EmailSentEvent {
+	return &emailSentEvent{
+		newBaseEvent(`emailSent`, b.properties),
+	}
+}
+
+var PaymentFailed = struct {
+	Builder func() interface {
+		Amount(amount float64) interface {
+			Domain(domain string) interface {
+				Fee(fee float64) interface {
+					FeeCoveredBy(feeCoveredBy string) interface {
+						Product(product string) interface {
+							ProductQty(productQty int) PaymentFailedBuilder
+						}
+					}
+				}
+			}
+		}
+	}
+}{
+	Builder: func() interface {
+		Amount(amount float64) interface {
+			Domain(domain string) interface {
+				Fee(fee float64) interface {
+					FeeCoveredBy(feeCoveredBy string) interface {
+						Product(product string) interface {
+							ProductQty(productQty int) PaymentFailedBuilder
+						}
+					}
+				}
+			}
+		}
+	} {
+		return &paymentFailedBuilder{
+			properties: map[string]any{},
+		}
+	},
+}
+
+type PaymentFailedEvent interface {
+	Event
+	paymentFailed()
+}
+
+type paymentFailedEvent struct {
+	baseEvent
+}
+
+func (e paymentFailedEvent) paymentFailed() {
+}
+
+type PaymentFailedBuilder interface {
+	Build() PaymentFailedEvent
+	Comment(comment string) PaymentFailedBuilder
+	Source(source string) PaymentFailedBuilder
+}
+
+type paymentFailedBuilder struct {
+	properties map[string]any
+}
+
+func (b *paymentFailedBuilder) Amount(amount float64) interface {
+	Domain(domain string) interface {
+		Fee(fee float64) interface {
+			FeeCoveredBy(feeCoveredBy string) interface {
+				Product(product string) interface {
+					ProductQty(productQty int) PaymentFailedBuilder
+				}
+			}
+		}
+	}
+} {
+	b.properties[`amount`] = amount
+
+	return b
+}
+
+func (b *paymentFailedBuilder) Domain(domain string) interface {
+	Fee(fee float64) interface {
+		FeeCoveredBy(feeCoveredBy string) interface {
+			Product(product string) interface {
+				ProductQty(productQty int) PaymentFailedBuilder
+			}
+		}
+	}
+} {
+	b.properties[`domain`] = domain
+
+	return b
+}
+
+func (b *paymentFailedBuilder) Fee(fee float64) interface {
+	FeeCoveredBy(feeCoveredBy string) interface {
+		Product(product string) interface {
+			ProductQty(productQty int) PaymentFailedBuilder
+		}
+	}
+} {
+	b.properties[`fee`] = fee
+
+	return b
+}
+
+func (b *paymentFailedBuilder) FeeCoveredBy(feeCoveredBy string) interface {
+	Product(product string) interface {
+		ProductQty(productQty int) PaymentFailedBuilder
+	}
+} {
+	b.properties[`feeCoveredBy`] = feeCoveredBy
+
+	return b
+}
+
+func (b *paymentFailedBuilder) Product(product string) interface {
+	ProductQty(productQty int) PaymentFailedBuilder
+} {
+	b.properties[`product`] = product
+
+	return b
+}
+
+func (b *paymentFailedBuilder) ProductQty(productQty int) PaymentFailedBuilder {
+	b.properties[`product_qty`] = productQty
+
+	return b
+}
+
+func (b *paymentFailedBuilder) Comment(comment string) PaymentFailedBuilder {
+	b.properties[`comment`] = comment
+
+	return b
+}
+
+func (b *paymentFailedBuilder) Source(source string) PaymentFailedBuilder {
+	b.properties[`source`] = source
+
+	return b
+}
+
+func (b *paymentFailedBuilder) Build() PaymentFailedEvent {
+	return &paymentFailedEvent{
+		newBaseEvent(`paymentFailed`, b.properties),
+	}
+}
+
+var PaymentSuccess = struct {
+	Builder func() interface {
+		Price(price float64) interface {
+			ProductId(productId string) interface {
+				Revenue(revenue float64) interface {
+					RevenueType(revenueType string) interface {
+						Amount(amount float64) interface {
+							Domain(domain string) interface {
+								Fee(fee float64) interface {
+									FeeCoveredBy(feeCoveredBy string) interface {
+										Product(product string) interface {
+											ProductQty(productQty int) PaymentSuccessBuilder
+										}
+									}
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+}{
+	Builder: func() interface {
+		Price(price float64) interface {
+			ProductId(productId string) interface {
+				Revenue(revenue float64) interface {
+					RevenueType(revenueType string) interface {
+						Amount(amount float64) interface {
+							Domain(domain string) interface {
+								Fee(fee float64) interface {
+									FeeCoveredBy(feeCoveredBy string) interface {
+										Product(product string) interface {
+											ProductQty(productQty int) PaymentSuccessBuilder
+										}
+									}
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+	} {
+		return &paymentSuccessBuilder{
+			properties: map[string]any{},
+		}
+	},
+}
+
+type PaymentSuccessEvent interface {
+	Event
+	paymentSuccess()
+}
+
+type paymentSuccessEvent struct {
+	baseEvent
+}
+
+func (e paymentSuccessEvent) paymentSuccess() {
+}
+
+type PaymentSuccessBuilder interface {
+	Build() PaymentSuccessEvent
+	Quantity(quantity int) PaymentSuccessBuilder
+	Comment(comment string) PaymentSuccessBuilder
+}
+
+type paymentSuccessBuilder struct {
+	properties map[string]any
+}
+
+func (b *paymentSuccessBuilder) Price(price float64) interface {
+	ProductId(productId string) interface {
+		Revenue(revenue float64) interface {
+			RevenueType(revenueType string) interface {
+				Amount(amount float64) interface {
+					Domain(domain string) interface {
+						Fee(fee float64) interface {
+							FeeCoveredBy(feeCoveredBy string) interface {
+								Product(product string) interface {
+									ProductQty(productQty int) PaymentSuccessBuilder
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+} {
+	b.properties[`$price`] = price
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) ProductId(productId string) interface {
+	Revenue(revenue float64) interface {
+		RevenueType(revenueType string) interface {
+			Amount(amount float64) interface {
+				Domain(domain string) interface {
+					Fee(fee float64) interface {
+						FeeCoveredBy(feeCoveredBy string) interface {
+							Product(product string) interface {
+								ProductQty(productQty int) PaymentSuccessBuilder
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+} {
+	b.properties[`$productId`] = productId
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) Revenue(revenue float64) interface {
+	RevenueType(revenueType string) interface {
+		Amount(amount float64) interface {
+			Domain(domain string) interface {
+				Fee(fee float64) interface {
+					FeeCoveredBy(feeCoveredBy string) interface {
+						Product(product string) interface {
+							ProductQty(productQty int) PaymentSuccessBuilder
+						}
+					}
+				}
+			}
+		}
+	}
+} {
+	b.properties[`$revenue`] = revenue
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) RevenueType(revenueType string) interface {
+	Amount(amount float64) interface {
+		Domain(domain string) interface {
+			Fee(fee float64) interface {
+				FeeCoveredBy(feeCoveredBy string) interface {
+					Product(product string) interface {
+						ProductQty(productQty int) PaymentSuccessBuilder
+					}
+				}
+			}
+		}
+	}
+} {
+	b.properties[`$revenueType`] = revenueType
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) Amount(amount float64) interface {
+	Domain(domain string) interface {
+		Fee(fee float64) interface {
+			FeeCoveredBy(feeCoveredBy string) interface {
+				Product(product string) interface {
+					ProductQty(productQty int) PaymentSuccessBuilder
+				}
+			}
+		}
+	}
+} {
+	b.properties[`amount`] = amount
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) Domain(domain string) interface {
+	Fee(fee float64) interface {
+		FeeCoveredBy(feeCoveredBy string) interface {
+			Product(product string) interface {
+				ProductQty(productQty int) PaymentSuccessBuilder
+			}
+		}
+	}
+} {
+	b.properties[`domain`] = domain
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) Fee(fee float64) interface {
+	FeeCoveredBy(feeCoveredBy string) interface {
+		Product(product string) interface {
+			ProductQty(productQty int) PaymentSuccessBuilder
+		}
+	}
+} {
+	b.properties[`fee`] = fee
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) FeeCoveredBy(feeCoveredBy string) interface {
+	Product(product string) interface {
+		ProductQty(productQty int) PaymentSuccessBuilder
+	}
+} {
+	b.properties[`feeCoveredBy`] = feeCoveredBy
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) Product(product string) interface {
+	ProductQty(productQty int) PaymentSuccessBuilder
+} {
+	b.properties[`product`] = product
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) ProductQty(productQty int) PaymentSuccessBuilder {
+	b.properties[`product_qty`] = productQty
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) Quantity(quantity int) PaymentSuccessBuilder {
+	b.properties[`$quantity`] = quantity
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) Comment(comment string) PaymentSuccessBuilder {
+	b.properties[`comment`] = comment
+
+	return b
+}
+
+func (b *paymentSuccessBuilder) Build() PaymentSuccessEvent {
+	return &paymentSuccessEvent{
+		newBaseEvent(`paymentSuccess`, b.properties),
+	}
+}
+
+type Ampli struct {
+	Disabled bool
+	Client   amplitude.Client
+	mutex    sync.RWMutex
+}
+
+// Load initializes the Ampli wrapper.
+// Call once when your application starts.
+func (a *Ampli) Load(options LoadOptions) {
+	if a.Client != nil {
+		log.Print("Warn: Ampli is already initialized. Ampli.Load() should be called once at application start up.")
+
+		return
+	}
+
+	var apiKey string
+	switch {
+	case options.Client.APIKey != "":
+		apiKey = options.Client.APIKey
+	case options.Environment != "":
+		apiKey = APIKey[options.Environment]
+	default:
+		apiKey = options.Client.Configuration.APIKey
+	}
+
+	if apiKey == "" && options.Client.Instance == nil {
+		log.Print("Error: Ampli.Load() requires option.Environment, " +
+			"and apiKey from either options.Instance.APIKey or APIKey[options.Environment], " +
+			"or options.Instance.Instance")
+	}
+
+	clientConfig := options.Client.Configuration
+
+	if clientConfig.Plan == nil {
+		clientConfig.Plan = &amplitude.Plan{
+			Branch:    `main`,
+			Source:    `backend`,
+			Version:   `2`,
+			VersionID: `4fa6851a-4ff0-42f1-b440-8b39f07870e4`,
+		}
+	}
+
+	if clientConfig.IngestionMetadata == nil {
+		clientConfig.IngestionMetadata = &amplitude.IngestionMetadata{
+			SourceName:    `go-go-ampli`,
+			SourceVersion: `2.0.0`,
+		}
+	}
+
+	if clientConfig.ServerZone == "" {
+		clientConfig.ServerZone = ServerZoneEU
+	}
+
+	if options.Client.Instance != nil {
+		a.Client = options.Client.Instance
+	} else {
+		clientConfig.APIKey = apiKey
+		a.Client = amplitude.NewClient(clientConfig)
+	}
+
+	a.mutex.Lock()
+	a.Disabled = options.Disabled
+	a.mutex.Unlock()
+}
+
+// InitializedAndEnabled checks if Ampli is initialized and enabled.
+func (a *Ampli) InitializedAndEnabled() bool {
+	if a.Client == nil {
+		log.Print("Error: Ampli is not yet initialized. Have you called Ampli.Load() on app start?")
+
+		return false
+	}
+
+	a.mutex.RLock()
+	defer a.mutex.RUnlock()
+
+	return !a.Disabled
+}
+
+func (a *Ampli) setUserID(userID string, eventOptions *EventOptions) {
+	if userID != "" {
+		eventOptions.UserID = userID
+	}
+}
+
+// Track tracks an event.
+func (a *Ampli) Track(userID string, event Event, eventOptions ...EventOptions) {
+	if !a.InitializedAndEnabled() {
+		return
+	}
+
+	var options EventOptions
+	if len(eventOptions) > 0 {
+		options = eventOptions[0]
+	}
+
+	a.setUserID(userID, &options)
+
+	baseEvent := event.ToAmplitudeEvent()
+	baseEvent.EventOptions = options
+
+	a.Client.Track(baseEvent)
+}
+
+// Identify identifies a user and set user properties.
+func (a *Ampli) Identify(userID string, eventOptions ...EventOptions) {
+	identify := newBaseEvent(IdentifyEventType, nil)
+	a.Track(userID, identify, eventOptions...)
+}
+
+// Flush flushes events waiting in buffer.
+func (a *Ampli) Flush() {
+	if !a.InitializedAndEnabled() {
+		return
+	}
+
+	a.Client.Flush()
+}
+
+// Shutdown disables and shutdowns Ampli Instance.
+func (a *Ampli) Shutdown() {
+	if !a.InitializedAndEnabled() {
+		return
+	}
+
+	a.mutex.Lock()
+	a.Disabled = true
+	a.mutex.Unlock()
+
+	a.Client.Shutdown()
+}
+
+func (a *Ampli) EmailOpened(userID string, event EmailOpenedEvent, eventOptions ...EventOptions) {
+	a.Track(userID, event, eventOptions...)
+}
+
+func (a *Ampli) EmailSent(userID string, event EmailSentEvent, eventOptions ...EventOptions) {
+	a.Track(userID, event, eventOptions...)
+}
+
+func (a *Ampli) PaymentFailed(userID string, event PaymentFailedEvent, eventOptions ...EventOptions) {
+	a.Track(userID, event, eventOptions...)
+}
+
+func (a *Ampli) PaymentSuccess(userID string, event PaymentSuccessEvent, eventOptions ...EventOptions) {
+	a.Track(userID, event, eventOptions...)
+}
--- a/api/notification/internal/api/api.go
+++ b/api/notification/internal/api/api.go
@@ -0,0 +1,146 @@
+package apiimp
+
+import (
+	"context"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/tech/sendico/notification/interface/api"
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	"github.com/tech/sendico/notification/interface/services/amplitude"
+	"github.com/tech/sendico/notification/interface/services/notification"
+	"github.com/tech/sendico/pkg/db"
+	"github.com/tech/sendico/pkg/domainprovider"
+	"github.com/tech/sendico/pkg/messaging"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/tech/sendico/pkg/mservice"
+	"go.uber.org/zap"
+)
+
+type Microservices = []mservice.MicroService
+
+type APIImp struct {
+	logger    mlogger.Logger
+	db        db.Factory
+	localizer localizer.Localizer
+	domain    domainprovider.DomainProvider
+	config    *api.Config
+	services  Microservices
+	debug     bool
+	mw        *Middleware
+}
+
+func (a *APIImp) installMicroservice(srv mservice.MicroService) {
+	a.services = append(a.services, srv)
+	a.logger.Info("Microservice installed", zap.String("service", srv.Name()))
+}
+
+func (a *APIImp) addMicroservice(srvf api.MicroServiceFactoryT) error {
+	srv, err := srvf(a)
+	if err != nil {
+		a.logger.Error("Failed to install a microservice", zap.Error(err))
+		return err
+	}
+
+	a.installMicroservice(srv)
+	return nil
+}
+
+func (a *APIImp) Logger() mlogger.Logger {
+	return a.logger
+}
+
+func (a *APIImp) Config() *api.Config {
+	return a.config
+}
+
+func (a *APIImp) Localizer() localizer.Localizer {
+	return a.localizer
+}
+
+func (a *APIImp) DBFactory() db.Factory {
+	return a.db
+}
+
+func (a *APIImp) DomainProvider() domainprovider.DomainProvider {
+	return a.domain
+}
+
+func (a *APIImp) Register() messaging.Register {
+	return a.mw
+}
+
+func (a *APIImp) installServices() error {
+	srvf := make([]api.MicroServiceFactoryT, 0)
+
+	srvf = append(srvf, amplitude.Create)
+	srvf = append(srvf, notification.Create)
+
+	for _, v := range srvf {
+		err := a.addMicroservice(v)
+		if err != nil {
+			return err
+		}
+	}
+
+	a.mw.SetStatus("ok")
+	return nil
+}
+
+func (a *APIImp) Finish(ctx context.Context) error {
+	a.mw.SetStatus("deactivating")
+	a.mw.Finish()
+	var lastError error
+	// stop services in the reverse order
+	for i := len(a.services) - 1; i >= 0; i-- {
+		err := (a.services[i]).Finish(ctx)
+		if err != nil {
+			lastError = err
+			a.logger.Warn("Error occurred when finishing service",
+				zap.Error(err),
+				zap.String("service_name", (a.services[i]).Name()))
+		} else {
+			a.logger.Info("Microservice is down",
+				zap.String("service_name", (a.services[i]).Name()))
+		}
+	}
+	return lastError
+}
+
+func (a *APIImp) Name() string {
+	return "api"
+}
+
+func CreateAPI(logger mlogger.Logger, config *api.Config, l localizer.Localizer, db db.Factory, router *chi.Mux, debug bool) (mservice.MicroService, error) {
+	p := new(APIImp)
+	p.logger = logger.Named("api")
+	p.debug = debug
+	p.config = config
+	p.db = db
+	p.localizer = l
+
+	var err error
+	if p.domain, err = domainprovider.CreateDomainProvider(p.logger, config.Mw.DomainEnv, config.Mw.APIProtocolEnv, config.Mw.EndPointEnv); err != nil {
+		p.logger.Error("Failed to initizlize domain provider")
+		return nil, err
+	}
+	odb, err := db.NewOrganizationDB()
+	if err != nil {
+		p.logger.Warn("Failed to create organization database", zap.Error(err))
+		return nil, err
+	}
+
+	if p.mw, err = CreateMiddleware(logger, odb, router, config.Mw, debug); err != nil {
+		p.logger.Warn("Failed to create middleware", zap.Error(err))
+		return nil, err
+	}
+
+	p.logger.Info("Installing microservices...")
+	if err := p.installServices(); err != nil {
+		p.logger.Error("Failed to install a microservice", zap.Error(err))
+		return nil, err
+	}
+
+	p.logger.Info("Microservices installation complete", zap.Int("microservices", len(p.services)))
+
+	return p, nil
+}
--- a/api/notification/internal/api/config/config.go
+++ b/api/notification/internal/api/config/config.go
@@ -0,0 +1,42 @@
+package apiimp
+
+import "github.com/tech/sendico/pkg/messaging"
+
+type CORSSettings struct {
+	MaxAge           int      `yaml:"max_age"`
+	AllowedOrigins   []string `yaml:"allowed_origins"`
+	AllowedMethods   []string `yaml:"allowed_methods"`
+	AllowedHeaders   []string `yaml:"allowed_headers"`
+	ExposedHeaders   []string `yaml:"exposed_headers"`
+	AllowCredentials bool     `yaml:"allow_credentials"`
+}
+
+type SignatureConf struct {
+	PublicKey  any
+	PrivateKey []byte
+	Algorithm  string
+}
+
+type Signature struct {
+	PublicKeyEnv  string `yaml:"public_key_env,omitempty"`
+	PrivateKeyEnv string `yaml:"secret_key_env"`
+	Algorithm     string `yaml:"algorithm"`
+}
+
+type WebSocketConfig struct {
+	EndpointEnv string `yaml:"endpoint_env"`
+	Timeout     int    `yaml:"timeout"`
+}
+
+type MessagingConfig struct {
+	BufferSize int `yaml:"buffer_size"`
+}
+
+type Config struct {
+	DomainEnv      string           `yaml:"domain_env"`
+	EndPointEnv    string           `yaml:"api_endpoint_env"`
+	APIProtocolEnv string           `yaml:"api_protocol_env"`
+	Messaging      messaging.Config `yaml:"message_broker"`
+}
+
+type MapClaims = map[string]any
--- a/api/notification/internal/api/middleware.go
+++ b/api/notification/internal/api/middleware.go
@@ -0,0 +1,59 @@
+package apiimp
+
+import (
+	"os"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/tech/sendico/notification/interface/middleware"
+	"github.com/tech/sendico/pkg/api/routers"
+	"github.com/tech/sendico/pkg/api/routers/health"
+	"github.com/tech/sendico/pkg/db/organization"
+	"github.com/tech/sendico/pkg/messaging"
+	notifications "github.com/tech/sendico/pkg/messaging/notifications/processor"
+	"github.com/tech/sendico/pkg/mlogger"
+	"go.uber.org/zap"
+)
+
+type Middleware struct {
+	logger      mlogger.Logger
+	router      *chi.Mux
+	apiEndpoint string
+	health      routers.Health
+	messaging   routers.Messaging
+}
+
+func (mw *Middleware) Consumer(processor notifications.EnvelopeProcessor) error {
+	return mw.messaging.Consumer(processor)
+}
+
+func (mw *Middleware) Producer() messaging.Producer {
+	return mw.messaging.Producer()
+}
+
+func (mw *Middleware) Finish() {
+	mw.messaging.Finish()
+	mw.health.Finish()
+}
+
+func (mw *Middleware) SetStatus(status health.ServiceStatus) {
+	mw.health.SetStatus(status)
+}
+
+func CreateMiddleware(logger mlogger.Logger, db organization.DB, router *chi.Mux, config *middleware.Config, debug bool) (*Middleware, error) {
+	p := &Middleware{
+		logger:      logger.Named("middleware"),
+		router:      router,
+		apiEndpoint: os.Getenv(config.EndPointEnv),
+	}
+	p.logger.Info("Set endpoint", zap.String("endpoint", p.apiEndpoint))
+	var err error
+	if p.messaging, err = routers.NewMessagingRouter(logger, &config.Messaging); err != nil {
+		p.logger.Error("Failed to create messaging router", zap.Error(err))
+		return nil, err
+	}
+	if p.health, err = routers.NewHealthRouter(p.logger, p.router, p.apiEndpoint); err != nil {
+		p.logger.Error("Failed to create healthcheck router", zap.Error(err), zap.String("api_endpoint", p.apiEndpoint))
+		return nil, err
+	}
+	return p, nil
+}
--- a/api/notification/internal/appversion/version.go
+++ b/api/notification/internal/appversion/version.go
@@ -0,0 +1,27 @@
+package appversion
+
+import (
+	"github.com/tech/sendico/pkg/version"
+	vf "github.com/tech/sendico/pkg/version/factory"
+)
+
+// Build information. Populated at build-time.
+var (
+	Version   string
+	Revision  string
+	Branch    string
+	BuildUser string
+	BuildDate string
+)
+
+func Create() version.Printer {
+	vi := version.Info{
+		Program:   "MeetX Connectica Notification Service",
+		Revision:  Revision,
+		Branch:    Branch,
+		BuildUser: BuildUser,
+		BuildDate: BuildDate,
+		Version:   Version,
+	}
+	return vf.Create(&vi)
+}
--- a/api/notification/internal/localizer/loc_imp.go
+++ b/api/notification/internal/localizer/loc_imp.go
@@ -0,0 +1,151 @@
+package lclrimp
+
+import (
+	"encoding/json"
+	"path"
+
+	"github.com/tech/sendico/pkg/merrors"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/tech/sendico/pkg/mutil/fr"
+	"github.com/nicksnyder/go-i18n/v2/i18n"
+	"go.uber.org/zap"
+	"golang.org/x/text/language"
+)
+
+type Lang struct {
+	bundle    *i18n.Bundle
+	localizer *i18n.Localizer
+}
+
+type Localizers = map[string]Lang
+
+type Localizer struct {
+	logger      mlogger.Logger
+	l9rs        Localizers
+	support     string
+	serviceName string
+}
+
+type Config struct {
+	Path        string   `yaml:"path"`
+	Langs       []string `yaml:"languages"`
+	Support     string   `yaml:"support"`
+	ServiceName string   `yaml:"service_name"`
+}
+
+func loadBundleLocalization(logger mlogger.Logger, bundle *i18n.Bundle, localizationPath string) error {
+	b, err := fr.ReadFile(logger, localizationPath)
+	if err != nil {
+		logger.Error("Failed to read localization", zap.Error(err), zap.String("localization_path", localizationPath))
+		return err
+	}
+	_, err = bundle.ParseMessageFileBytes(b, localizationPath)
+	if err != nil {
+		logger.Error("Failed to parse localization", zap.Error(err), zap.String("localization_path", localizationPath))
+		return err
+	}
+
+	return err
+}
+
+func loadLocalizations(logger mlogger.Logger, source string) (*i18n.Bundle, error) {
+	bundle := i18n.NewBundle(language.English)
+
+	// Register a json unmarshal function for i18n bundle.
+	bundle.RegisterUnmarshalFunc("json", json.Unmarshal)
+
+	// Load translations from json files for non-default languages.
+	err := loadBundleLocalization(logger, bundle, source)
+	if err != nil {
+		// will not log error once again, just return nil
+		return nil, err
+	}
+
+	return bundle, nil
+}
+
+func newLang(logger mlogger.Logger, language string, source string) (*Lang, error) {
+	var lang Lang
+	var err error
+	lang.bundle, err = loadLocalizations(logger, source)
+	if err != nil {
+		logger.Error("Failed to install language bundle", zap.Error(err),
+			zap.String("language", language), zap.String("source", source))
+		return nil, err
+	}
+
+	lang.localizer = i18n.NewLocalizer(lang.bundle, language)
+	if lang.localizer != nil {
+		logger.Info("Installed language bundle",
+			zap.String("language", language), zap.String("source", source))
+	} else {
+		logger.Error("Failed to install language bundle", zap.String("language", language), zap.String("source", source))
+		return nil, merrors.Internal("failed_to_load_localization")
+	}
+
+	return &lang, nil
+}
+
+func prepareLocalizers(logger mlogger.Logger, conf *Config) (Localizers, error) {
+	localizers := make(Localizers)
+	for _, lang := range conf.Langs {
+		path := path.Join(conf.Path, lang+".json")
+		l, err := newLang(logger, lang, path)
+		if err != nil {
+			logger.Error("Failed to load localization", zap.Error(err), zap.String("language", lang), zap.String("source", path))
+			return localizers, err
+		}
+		localizers[lang] = *l
+	}
+	return localizers, nil
+}
+
+func (loc *Localizer) LocalizeTemplate(id string, templateData, ctr any, lang string) (string, error) {
+	lclzr, found := loc.l9rs[lang]
+	if !found {
+		loc.logger.Info("Language not found, falling back to en", zap.String("message_id", id), zap.String("language", lang))
+		lclzr = loc.l9rs["en"]
+	}
+
+	config := i18n.LocalizeConfig{
+		MessageID:    id,
+		TemplateData: templateData,
+		PluralCount:  ctr,
+	}
+	localized, err := lclzr.localizer.Localize(&config)
+	if err != nil {
+		loc.logger.Warn("Failed to localize string", zap.Error(err), zap.String("message_id", id), zap.String("language", lang))
+	}
+
+	return localized, err
+}
+
+func (loc *Localizer) LocalizeString(id string, lang string) (string, error) {
+	return loc.LocalizeTemplate(id, nil, nil, lang)
+}
+
+func (loc *Localizer) ServiceName() string {
+	return loc.serviceName
+}
+
+func (loc *Localizer) SupportMail() string {
+	return loc.support
+}
+
+// NewConnection creates a new database connection
+func CreateLocalizer(logger mlogger.Logger, config *Config) (*Localizer, error) {
+	p := new(Localizer)
+	p.logger = logger.Named("localizer")
+	var err error
+	p.l9rs, err = prepareLocalizers(p.logger, config)
+	if err != nil {
+		logger.Warn("Failed to create localizer", zap.Error(err))
+		return nil, err
+	}
+	p.serviceName = config.ServiceName
+	p.support = config.Support
+
+	logger.Info("Localizer is up", zap.String("service_name", p.serviceName), zap.String("support", p.support))
+
+	return p, nil
+}
--- a/api/notification/internal/server/amplitude/amplitude.go
+++ b/api/notification/internal/server/amplitude/amplitude.go
@@ -0,0 +1,45 @@
+package ampliimp
+
+import (
+	"context"
+	"os"
+
+	"github.com/amplitude/analytics-go/amplitude"
+	"github.com/tech/sendico/notification/interface/api"
+	"github.com/tech/sendico/notification/internal/ampli"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/tech/sendico/pkg/mservice"
+	"go.uber.org/zap"
+)
+
+type AmplitudeAPI struct {
+	logger mlogger.Logger
+}
+
+func (a *AmplitudeAPI) Name() mservice.Type {
+	return "amplitude"
+}
+
+func (a *AmplitudeAPI) Finish(_ context.Context) error {
+	ampli.Instance.Flush()
+	return nil
+}
+
+func CreateAPI(a api.API) (*AmplitudeAPI, error) {
+	p := new(AmplitudeAPI)
+	p.logger = a.Logger().Named(p.Name())
+
+	env := os.Getenv(a.Config().Amplitude.Environment)
+	ampli.Instance.Load(ampli.LoadOptions{
+		Environment: ampli.EnvironmentProfeetips,
+		Client: ampli.LoadClientOptions{
+			Configuration: amplitude.Config{
+				Logger:     p.logger.Named("ampli").Sugar(),
+				ServerZone: ampli.ServerZoneEU,
+			},
+		},
+	})
+	p.logger.Info("Amplitude environment is set", zap.String("ampli_environment", env))
+
+	return p, nil
+}
--- a/api/notification/internal/server/amplitude/nsent.go
+++ b/api/notification/internal/server/amplitude/nsent.go
@@ -0,0 +1,16 @@
+package ampliimp
+
+import (
+	"context"
+
+	"github.com/tech/sendico/notification/internal/ampli"
+	"github.com/tech/sendico/pkg/model"
+)
+
+func (a *AmplitudeAPI) onNotificationSent(_ context.Context, nresult *model.NotificationResult) error {
+	ampli.Instance.EmailSent(
+		nresult.UserID,
+		ampli.EmailSent.Builder().Domain("").EmailType("").Build(),
+	)
+	return nil
+}
--- a/api/notification/internal/server/internal/serverimp.go
+++ b/api/notification/internal/server/internal/serverimp.go
@@ -0,0 +1,128 @@
+package serverimp
+
+import (
+	"context"
+	"errors"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/tech/sendico/notification/interface/api"
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	apiimip "github.com/tech/sendico/notification/internal/api"
+	"github.com/tech/sendico/pkg/db"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/tech/sendico/pkg/mservice"
+	mduration "github.com/tech/sendico/pkg/mutil/duration"
+	"go.uber.org/zap"
+	"gopkg.in/yaml.v3"
+)
+
+type httpServerConf struct {
+	ListenAddress     string `yaml:"listen_address"`
+	ReadHeaderTimeout int    `yaml:"read_header_timeout"`
+	ShutdownTimeout   int    `yaml:"shutdown_timeout"`
+}
+
+// Config represents the server configuration
+type Config struct {
+	API        *api.Config       `yaml:"api"`
+	DB         *db.Config        `yaml:"database"`
+	Localizer  *localizer.Config `yaml:"localizer"`
+	HTTPServer *httpServerConf   `yaml:"http_server"`
+}
+
+// Instance represents an instance of the server
+type Imp struct {
+	logger     mlogger.Logger
+	api        mservice.MicroService
+	config     *Config
+	db         db.Factory
+	l          localizer.Localizer
+	httpServer *http.Server
+	debug      bool
+	file       string
+}
+
+// Shutdown stops the server
+func (i *Imp) Shutdown() {
+	// Shutdown HTTP server
+	ctx, cancel := context.WithTimeout(context.Background(), mduration.Param2Duration(i.config.HTTPServer.ShutdownTimeout, time.Second))
+	i.logger.Info("Shutting HTTP server down...")
+	if err := i.httpServer.Shutdown(ctx); err != nil {
+		if !errors.Is(err, http.ErrServerClosed) {
+			i.logger.Warn("Failed to shutdown HTTP server gracefully", zap.Error(err))
+			cancel()
+			os.Exit(1)
+		}
+	}
+	cancel()
+}
+
+func (i *Imp) Run() error {
+	if err := i.httpServer.ListenAndServe(); err != nil {
+		if !errors.Is(err, http.ErrServerClosed) {
+			i.logger.Error("HTTP Server stopped unexpectedly", zap.Error(err))
+		}
+	}
+	i.logger.Info("HTTP Server stopped")
+
+	if err := i.api.Finish(context.Background()); err != nil {
+		i.logger.Warn("Error when finishing service", zap.Error(err))
+	}
+
+	i.db.CloseConnection()
+
+	return nil
+}
+
+// Start starts the server
+func (i *Imp) Start() error {
+	i.logger.Info("Starting...", zap.String("config_file", i.file), zap.Bool("debug_mode", i.debug))
+	// Load configuration file
+	data, err := os.ReadFile(i.file)
+	if err != nil {
+		i.logger.Error("Could not load configuration", zap.Error(err), zap.String("config_file", i.file))
+		return err
+	}
+
+	if err = yaml.Unmarshal(data, &i.config); err != nil {
+		i.logger.Error("Failed to parse configuration", zap.Error(err))
+		return err
+	}
+
+	if i.db, err = db.NewConnection(i.logger, i.config.DB); err != nil {
+		i.logger.Error("Could not open database connection", zap.Error(err))
+		return err
+	}
+
+	if i.l, err = localizer.CreateLocalizer(i.logger, i.config.Localizer); err != nil {
+		i.logger.Error("Failed to create localizer", zap.Error(err))
+		return err
+	}
+
+	router := chi.NewRouter()
+	if i.api, err = apiimip.CreateAPI(i.logger, i.config.API, i.l, i.db, router, i.debug); err != nil {
+		i.logger.Error("Failed to create API instance", zap.Error(err))
+		return err
+	}
+
+	// Startup the HTTP Server in a way that we can gracefully shut it down again
+	i.httpServer = &http.Server{
+		Addr:              i.config.HTTPServer.ListenAddress,
+		Handler:           router,
+		ReadHeaderTimeout: mduration.Param2Duration(i.config.HTTPServer.ReadHeaderTimeout, time.Second),
+	}
+
+	return i.Run()
+}
+
+func Create(logger mlogger.Logger, file string, debug bool) (*Imp, error) {
+	srv := &Imp{
+		logger: logger,
+		debug:  debug,
+		file:   file,
+	}
+	return srv, nil
+}
--- a/api/notification/internal/server/notificationimp/accountcreated.go
+++ b/api/notification/internal/server/notificationimp/accountcreated.go
@@ -0,0 +1,29 @@
+package notificationimp
+
+import (
+	"context"
+
+	"github.com/tech/sendico/pkg/model"
+	"go.uber.org/zap"
+)
+
+func (a *NotificationAPI) onAccount(context context.Context, account *model.Account) error {
+	var link string
+	var err error
+	if link, err = a.dp.GetFullLink("verify", account.VerifyToken); err != nil {
+		a.logger.Warn("Failed to generate verification link", zap.Error(err), zap.String("login", account.Login))
+		return err
+	}
+	mr := a.client.MailBuilder().
+		AddRecipient(account.Name, account.Login).
+		SetAccountID(account.ID.Hex()).
+		SetLocale(account.Locale).
+		AddButton(link).
+		SetTemplateID("welcome")
+	if err := a.client.Send(mr); err != nil {
+		a.logger.Warn("Failed to send verification email", zap.Error(err), zap.String("login", account.Login))
+		return err
+	}
+	a.logger.Info("Verification email sent", zap.String("login", account.Login))
+	return nil
+}
--- a/api/notification/internal/server/notificationimp/invitationcreated.go
+++ b/api/notification/internal/server/notificationimp/invitationcreated.go
@@ -0,0 +1,32 @@
+package notificationimp
+
+import (
+	"context"
+
+	"github.com/tech/sendico/pkg/model"
+	"github.com/tech/sendico/pkg/mservice"
+	"go.uber.org/zap"
+)
+
+func (a *NotificationAPI) onInvitation(context context.Context, account *model.Account, invitation *model.Invitation) error {
+	var link string
+	var err error
+	if link, err = a.dp.GetFullLink(mservice.Invitations, invitation.ID.Hex()); err != nil {
+		a.logger.Warn("Failed to generate invitation link", zap.Error(err), zap.String("email", invitation.Content.Email))
+		return err
+	}
+	mr := a.client.MailBuilder().
+		AddData("InviterName", account.Name).
+		AddData("Name", invitation.Content.Name).
+		AddRecipient(invitation.Content.Name, invitation.Content.Email).
+		SetAccountID(account.ID.Hex()).
+		SetLocale(account.Locale).
+		AddButton(link).
+		SetTemplateID("invitation")
+	if err := a.client.Send(mr); err != nil {
+		a.logger.Warn("Failed to send verification email", zap.Error(err), zap.String("email", invitation.Content.Email))
+		return err
+	}
+	a.logger.Info("Invitation email sent", zap.String("to", invitation.Content.Email), zap.String("on_behalf_of", account.Name))
+	return nil
+}
--- a/api/notification/internal/server/notificationimp/mail/ampli.go
+++ b/api/notification/internal/server/notificationimp/mail/ampli.go
@@ -0,0 +1,70 @@
+package mail
+
+import (
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	mmail "github.com/tech/sendico/notification/internal/server/notificationimp/mail/messagebuilder"
+	"github.com/tech/sendico/pkg/domainprovider"
+	"github.com/tech/sendico/pkg/messaging"
+	nn "github.com/tech/sendico/pkg/messaging/notifications/notification"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/tech/sendico/pkg/model"
+	"go.uber.org/zap"
+)
+
+type AmpliMailer struct {
+	logger   mlogger.Logger
+	producer messaging.Producer
+	client   Client
+	source   string
+}
+
+func (am *AmpliMailer) Send(m mmail.MailBuilder) error {
+	err := am.client.Send(m)
+	if err != nil {
+		am.logger.Warn("Failed to send email", zap.Error(err))
+	}
+	opResult := model.OperationResult{
+		IsSuccessful: err == nil,
+	}
+	if !opResult.IsSuccessful {
+		opResult.Error = err.Error()
+	}
+	msg, e := m.Build()
+	if e != nil {
+		am.logger.Warn("Failed to build message content", zap.Error(e))
+		return e
+	}
+	if er := am.producer.SendMessage(nn.NotificationSent(am.source, &model.NotificationResult{
+		Channel:    "email",
+		TemplateID: msg.TemplateID(),
+		Locale:     msg.Locale(),
+		AmpliEvent: model.AmpliEvent{
+			UserID: "",
+		},
+		Result: opResult,
+	})); er != nil {
+		am.logger.Warn("Failed to send mailing result", zap.Error(er))
+	}
+	return err
+}
+
+func (am *AmpliMailer) MailBuilder() mmail.MailBuilder {
+	return am.client.MailBuilder()
+}
+
+func NewAmpliMailer(log mlogger.Logger, sender string, producer messaging.Producer, l localizer.Localizer, dp domainprovider.DomainProvider, config *Config) (*AmpliMailer, error) {
+	logger := log.Named("ampli")
+	c, err := createMailClient(logger, producer, l, dp, config)
+	if err != nil {
+		logger.Warn("Failed to create mailng driver", zap.Error(err), zap.String("driver", config.Driver))
+		return nil, err
+	}
+	am := &AmpliMailer{
+		logger:   logger,
+		client:   c,
+		producer: producer,
+		source:   sender,
+	}
+	am.logger.Info("Amplitude wrapper installed")
+	return am, nil
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/builder/builder.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/builder/builder.go
@@ -0,0 +1,54 @@
+package mailimp
+
+import (
+	mmail "github.com/tech/sendico/notification/internal/server/notificationimp/mail/messagebuilder"
+	"github.com/tech/sendico/pkg/merrors"
+)
+
+type MessageBuilderImp struct {
+	message *MessageImp
+}
+
+func (mb *MessageBuilderImp) SetAccountID(accountID string) mmail.MailBuilder {
+	mb.message.accountUID = accountID
+	return mb
+}
+
+func (mb *MessageBuilderImp) SetTemplateID(templateID string) mmail.MailBuilder {
+	mb.message.templateID = templateID
+	return mb
+}
+
+func (mb *MessageBuilderImp) SetLocale(locale string) mmail.MailBuilder {
+	mb.message.locale = locale
+	return mb
+}
+
+func (mb *MessageBuilderImp) AddButton(link string) mmail.MailBuilder {
+	mb.message.buttonLink = link
+	return mb
+}
+
+func (mb *MessageBuilderImp) AddRecipient(recipientName, recipient string) mmail.MailBuilder {
+	mb.message.recipientName = recipientName
+	mb.message.recipients = append(mb.message.recipients, recipient)
+	return mb
+}
+
+func (mb *MessageBuilderImp) AddData(key, value string) mmail.MailBuilder {
+	mb.message.parameters[key] = value
+	return mb
+}
+
+func (mb *MessageBuilderImp) Build() (mmail.Message, error) {
+	if len(mb.message.recipients) == 0 {
+		return nil, merrors.InvalidArgument("Recipient not set")
+	}
+	return mb.message, nil
+}
+
+func NewMessageBuilder() *MessageBuilderImp {
+	return &MessageBuilderImp{
+		message: createMessageImp(),
+	}
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/builder/builder_test.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/builder/builder_test.go
@@ -0,0 +1,251 @@
+package mailimp
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/tech/sendico/pkg/merrors"
+)
+
+func TestNewMessageBuilder_CreatesValidBuilder(t *testing.T) {
+	builder := NewMessageBuilder()
+	if builder == nil {
+		t.Fatal("Expected non-nil builder")
+	}
+	if builder.message == nil {
+		t.Fatal("Expected builder to have initialized message")
+	}
+}
+
+func TestMessageBuilder_BuildWithoutRecipient_ReturnsError(t *testing.T) {
+	builder := NewMessageBuilder()
+	_, err := builder.Build()
+
+	if err == nil {
+		t.Fatal("Expected error when building without recipient")
+	}
+
+	if !errors.Is(err, merrors.ErrInvalidArg) {
+		t.Errorf("Expected InvalidArgument error, got: %v", err)
+	}
+}
+
+func TestMessageBuilder_BuildWithRecipient_Success(t *testing.T) {
+	builder := NewMessageBuilder()
+	msg, err := builder.
+		AddRecipient("John Doe", "john@example.com").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+	if msg == nil {
+		t.Fatal("Expected non-nil message")
+	}
+}
+
+func TestMessageBuilder_SetAccountID_SetsCorrectValue(t *testing.T) {
+	builder := NewMessageBuilder()
+	accountID := "507f1f77bcf86cd799439011"
+
+	msg, err := builder.
+		SetAccountID(accountID).
+		AddRecipient("Test User", "test@example.com").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	if msg.AccountID() != accountID {
+		t.Errorf("Expected AccountID %s, got %s", accountID, msg.AccountID())
+	}
+}
+
+func TestMessageBuilder_SetTemplateID_SetsCorrectValue(t *testing.T) {
+	builder := NewMessageBuilder()
+	templateID := "welcome"
+
+	msg, err := builder.
+		SetTemplateID(templateID).
+		AddRecipient("Test User", "test@example.com").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	if msg.TemplateID() != templateID {
+		t.Errorf("Expected TemplateID %s, got %s", templateID, msg.TemplateID())
+	}
+}
+
+func TestMessageBuilder_SetLocale_SetsCorrectValue(t *testing.T) {
+	builder := NewMessageBuilder()
+	locale := "en-US"
+
+	msg, err := builder.
+		SetLocale(locale).
+		AddRecipient("Test User", "test@example.com").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	if msg.Locale() != locale {
+		t.Errorf("Expected Locale %s, got %s", locale, msg.Locale())
+	}
+}
+
+func TestMessageBuilder_AddRecipient_AddsToRecipientsList(t *testing.T) {
+	builder := NewMessageBuilder()
+
+	msg, err := builder.
+		AddRecipient("User One", "user1@example.com").
+		AddRecipient("User Two", "user2@example.com").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	recipients := msg.Recipients()
+	if len(recipients) != 2 {
+		t.Fatalf("Expected 2 recipients, got %d", len(recipients))
+	}
+
+	if recipients[0] != "user1@example.com" {
+		t.Errorf("Expected first recipient to be user1@example.com, got %s", recipients[0])
+	}
+	if recipients[1] != "user2@example.com" {
+		t.Errorf("Expected second recipient to be user2@example.com, got %s", recipients[1])
+	}
+}
+
+func TestMessageBuilder_AddData_AccumulatesParameters(t *testing.T) {
+	builder := NewMessageBuilder()
+
+	msg, err := builder.
+		AddData("key1", "value1").
+		AddData("key2", "value2").
+		AddRecipient("Test User", "test@example.com").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	params := msg.Parameters()
+	if len(params) != 2 {
+		t.Fatalf("Expected 2 parameters, got %d", len(params))
+	}
+
+	if params["key1"] != "value1" {
+		t.Errorf("Expected key1=value1, got %v", params["key1"])
+	}
+	if params["key2"] != "value2" {
+		t.Errorf("Expected key2=value2, got %v", params["key2"])
+	}
+}
+
+func TestMessageBuilder_AddButton_StoresButtonLink(t *testing.T) {
+	builder := NewMessageBuilder()
+	buttonLink := "https://example.com/verify"
+
+	msg, err := builder.
+		AddButton(buttonLink).
+		AddRecipient("Test User", "test@example.com").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	// Button link is internal, but we can verify the message was built successfully
+	if msg == nil {
+		t.Fatal("Expected non-nil message with button")
+	}
+}
+
+func TestMessageBuilder_ChainedMethods_SetsAllFields(t *testing.T) {
+	builder := NewMessageBuilder()
+
+	msg, err := builder.
+		SetAccountID("507f1f77bcf86cd799439011").
+		SetTemplateID("welcome").
+		SetLocale("en-US").
+		AddButton("https://example.com/verify").
+		AddRecipient("John Doe", "john@example.com").
+		AddData("name", "John").
+		AddData("age", "30").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	if msg.AccountID() != "507f1f77bcf86cd799439011" {
+		t.Errorf("AccountID not set correctly")
+	}
+	if msg.TemplateID() != "welcome" {
+		t.Errorf("TemplateID not set correctly")
+	}
+	if msg.Locale() != "en-US" {
+		t.Errorf("Locale not set correctly")
+	}
+	if len(msg.Recipients()) != 1 {
+		t.Errorf("Recipients not set correctly")
+	}
+	if len(msg.Parameters()) != 2 {
+		t.Errorf("Parameters not set correctly")
+	}
+}
+
+func TestMessageBuilder_MultipleBuilds_IndependentMessages(t *testing.T) {
+	builder1 := NewMessageBuilder()
+	builder2 := NewMessageBuilder()
+
+	msg1, err1 := builder1.
+		SetTemplateID("template1").
+		AddRecipient("User 1", "user1@example.com").
+		Build()
+
+	msg2, err2 := builder2.
+		SetTemplateID("template2").
+		AddRecipient("User 2", "user2@example.com").
+		Build()
+
+	if err1 != nil || err2 != nil {
+		t.Fatalf("Unexpected errors: %v, %v", err1, err2)
+	}
+
+	if msg1.TemplateID() == msg2.TemplateID() {
+		t.Error("Messages should be independent with different template IDs")
+	}
+
+	if msg1.Recipients()[0] == msg2.Recipients()[0] {
+		t.Error("Messages should be independent with different recipients")
+	}
+}
+
+func TestMessageBuilder_EmptyValues_AreAllowed(t *testing.T) {
+	builder := NewMessageBuilder()
+
+	msg, err := builder.
+		SetAccountID("").
+		SetTemplateID("").
+		SetLocale("").
+		AddButton("").
+		AddRecipient("", "user@example.com").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	// Empty values should be allowed - business logic validation happens elsewhere
+	if msg == nil {
+		t.Fatal("Expected message to be built even with empty values")
+	}
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/builder/email.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/builder/email.go
@@ -0,0 +1,150 @@
+package mailimp
+
+import (
+	"maps"
+
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	"github.com/tech/sendico/notification/internal/server/notificationimp/mail/internal/mailkey"
+	mmail "github.com/tech/sendico/notification/internal/server/notificationimp/mail/messagebuilder"
+	"github.com/tech/sendico/pkg/domainprovider"
+	"github.com/tech/sendico/pkg/localization"
+)
+
+type EmailNotificationTemplate struct {
+	dp             domainprovider.DomainProvider
+	l              localizer.Localizer
+	data           localization.LocData
+	unsubscribable bool
+	hasButton      bool
+}
+
+func (m *EmailNotificationTemplate) AddData(key, value string) {
+	localization.AddLocData(m.data, key, value)
+}
+
+// content:
+// Greeting: Welcome,&nbsp;Gregory
+// Content: You're receiving this message because you recently signed up for an account.<br><br>Confirm your email address by clicking the button below. This step adds extra security to your business by verifying you own this email.
+// LogoLink: link to a logo
+// Privacy: Privacy Policy
+// PolicyLink: link to a privacy policy
+// Unsubscribe: Unsubscribe
+// UnsubscribeLink: link to an unsubscribe command
+// MessageTitle: message title
+
+func (m *EmailNotificationTemplate) prepareUnsubscribe(msg mmail.Message) error {
+	var block string
+	if m.unsubscribable {
+		var d localization.LocData
+		unsubscribe, err := m.l.LocalizeString("mail.template.unsubscribe", msg.Locale())
+		if err != nil {
+			return err
+		}
+		localization.AddLocData(d, "Unsubscribe", unsubscribe)
+		unsLink, err := m.dp.GetFullLink("account", "unsubscribe", msg.AccountID())
+		if err != nil {
+			return err
+		}
+		localization.AddLocData(d, "UnsubscribeLink", unsLink)
+		if block, err = m.l.LocalizeTemplate("mail.template.unsubscribe.block", d, nil, msg.Locale()); err != nil {
+			return err
+		}
+	}
+	m.AddData("UnsubscribeBlock", block)
+	return nil
+}
+
+func (m *EmailNotificationTemplate) prepareButton(msg mmail.Message) error {
+	var block string
+	if m.hasButton {
+		var err error
+		if block, err = m.l.LocalizeTemplate("mail.template.btn.block", m.data, nil, msg.Locale()); err != nil {
+			return err
+		}
+	}
+	m.AddData("ButtonBlock", block)
+	return nil
+}
+
+func (m *EmailNotificationTemplate) SignatureData(msg mmail.Message, content, subj string) (string, error) {
+	m.AddData("Content", content)
+	m.AddData("MessageTitle", subj)
+	logoLink, err := m.dp.GetAPILink("logo", msg.AccountID(), msg.TemplateID())
+	if err != nil {
+		return "", err
+	}
+	m.AddData("LogoLink", logoLink)
+	privacy, err := m.l.LocalizeString("mail.template.privacy", msg.Locale())
+	if err != nil {
+		return "", err
+	}
+	m.AddData("Privacy", privacy)
+	ppLink, err := m.dp.GetFullLink("/privacy-policy")
+	if err != nil {
+		return "", err
+	}
+	m.AddData("PolicyLink", ppLink)
+	if err := m.prepareButton(msg); err != nil {
+		return "", err
+	}
+	if err := m.prepareUnsubscribe(msg); err != nil {
+		return "", err
+	}
+
+	return m.l.LocalizeTemplate("mail.template.one_button", m.data, nil, msg.Locale())
+}
+
+func (m *EmailNotificationTemplate) putOnHTMLTemplate(msg mmail.Message, content, subj string) (string, error) {
+	greeting, err := m.l.LocalizeTemplate(mailkey.Get(msg.TemplateID(), "greeting"), m.data, nil, msg.Locale())
+	if err != nil {
+		return "", err
+	}
+	m.AddData("Greeting", greeting)
+	return m.SignatureData(msg, content, subj)
+}
+
+func (m *EmailNotificationTemplate) Build(msg mmail.Message) (string, error) {
+	if m.data != nil {
+		m.data["ServiceName"] = m.l.ServiceName()
+		m.data["SupportMail"] = m.l.SupportMail()
+		var err error
+		if m.data["ServiceOwner"], err = m.l.LocalizeString("service.owner", msg.Locale()); err != nil {
+			return "", err
+		}
+		if m.data["OwnerAddress"], err = m.l.LocalizeString("service.address", msg.Locale()); err != nil {
+			return "", err
+		}
+		if m.data["OwnerPhone"], err = m.l.LocalizeString("service.phone", msg.Locale()); err != nil {
+			return "", err
+		}
+		maps.Copy(m.data, msg.Parameters())
+	}
+	content, err := mailkey.Body(m.l, m.data, msg.TemplateID(), msg.Locale())
+	if err != nil {
+		return "", err
+	}
+	subject, err := mailkey.Subject(m.l, m.data, msg.TemplateID(), msg.Locale())
+	if err != nil {
+		return "", err
+	}
+	return m.putOnHTMLTemplate(msg, content, subject)
+}
+
+func (t *EmailNotificationTemplate) SetUnsubscribable(isUnsubscribable bool) {
+	t.unsubscribable = isUnsubscribable
+}
+
+func (t *EmailNotificationTemplate) SetButton(hasButton bool) {
+	t.hasButton = hasButton
+}
+
+func NewEmailNotification(l localizer.Localizer, dp domainprovider.DomainProvider) *EmailNotificationTemplate {
+	p := &EmailNotificationTemplate{
+		dp:   dp,
+		l:    l,
+		data: localization.LocData{},
+	}
+	p.unsubscribable = false
+	p.hasButton = false
+	return p
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/builder/message.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/builder/message.go
@@ -0,0 +1,56 @@
+package mailimp
+
+import (
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	"github.com/tech/sendico/pkg/domainprovider"
+)
+
+type MessageImp struct {
+	templateID    string
+	accountUID    string
+	locale        string
+	recipients    []string
+	recipientName string
+	buttonLink    string
+	parameters    map[string]any
+}
+
+func (m *MessageImp) TemplateID() string {
+	return m.templateID
+}
+
+func (m *MessageImp) Locale() string {
+	return m.locale
+}
+
+func (m *MessageImp) AccountID() string {
+	return m.accountUID
+}
+
+func (m *MessageImp) Recipients() []string {
+	return m.recipients
+}
+
+func (m *MessageImp) Parameters() map[string]any {
+	return m.parameters
+}
+
+func (m *MessageImp) Body(l localizer.Localizer, dp domainprovider.DomainProvider) (string, error) {
+	if len(m.buttonLink) == 0 {
+		return NewEmailNotification(l, dp).Build(m)
+	}
+	page := NewOneButton(l, dp)
+	buttonLabel, err := l.LocalizeString("btn."+m.TemplateID(), m.Locale())
+	if err != nil {
+		return "", err
+	}
+	page.AddButton(buttonLabel, m.buttonLink)
+	return page.Build(m)
+}
+
+func createMessageImp() *MessageImp {
+	return &MessageImp{
+		parameters: map[string]any{},
+		recipients: []string{},
+	}
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/builder/message_test.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/builder/message_test.go
@@ -0,0 +1,256 @@
+package mailimp
+
+import (
+	"fmt"
+	"testing"
+)
+
+// Mock implementations for testing
+
+type mockLocalizer struct {
+	localizeTemplateFunc func(id string, templateData, ctr any, lang string) (string, error)
+	localizeStringFunc   func(id, lang string) (string, error)
+	serviceName          string
+	supportMail          string
+}
+
+func (m *mockLocalizer) LocalizeTemplate(id string, templateData, ctr any, lang string) (string, error) {
+	if m.localizeTemplateFunc != nil {
+		return m.localizeTemplateFunc(id, templateData, ctr, lang)
+	}
+	// Return a simple HTML template for testing
+	return fmt.Sprintf("<html><body>Template: %s</body></html>", id), nil
+}
+
+func (m *mockLocalizer) LocalizeString(id, lang string) (string, error) {
+	if m.localizeStringFunc != nil {
+		return m.localizeStringFunc(id, lang)
+	}
+	return fmt.Sprintf("string:%s", id), nil
+}
+
+func (m *mockLocalizer) ServiceName() string {
+	if m.serviceName != "" {
+		return m.serviceName
+	}
+	return "TestService"
+}
+
+func (m *mockLocalizer) SupportMail() string {
+	if m.supportMail != "" {
+		return m.supportMail
+	}
+	return "support@test.com"
+}
+
+type mockDomainProvider struct {
+	getFullLinkFunc func(linkElem ...string) (string, error)
+	getAPILinkFunc  func(linkElem ...string) (string, error)
+}
+
+func (m *mockDomainProvider) GetFullLink(linkElem ...string) (string, error) {
+	if m.getFullLinkFunc != nil {
+		return m.getFullLinkFunc(linkElem...)
+	}
+	return "https://example.com/link", nil
+}
+
+func (m *mockDomainProvider) GetAPILink(linkElem ...string) (string, error) {
+	if m.getAPILinkFunc != nil {
+		return m.getAPILinkFunc(linkElem...)
+	}
+	return "https://api.example.com/link", nil
+}
+
+// Tests
+
+func TestMessageImp_TemplateID_ReturnsCorrectValue(t *testing.T) {
+	msg := createMessageImp()
+	msg.templateID = "welcome"
+
+	if msg.TemplateID() != "welcome" {
+		t.Errorf("Expected templateID 'welcome', got '%s'", msg.TemplateID())
+	}
+}
+
+func TestMessageImp_Locale_ReturnsCorrectValue(t *testing.T) {
+	msg := createMessageImp()
+	msg.locale = "en-US"
+
+	if msg.Locale() != "en-US" {
+		t.Errorf("Expected locale 'en-US', got '%s'", msg.Locale())
+	}
+}
+
+func TestMessageImp_AccountID_ReturnsCorrectValue(t *testing.T) {
+	msg := createMessageImp()
+	msg.accountUID = "507f1f77bcf86cd799439011"
+
+	if msg.AccountID() != "507f1f77bcf86cd799439011" {
+		t.Errorf("Expected accountUID '507f1f77bcf86cd799439011', got '%s'", msg.AccountID())
+	}
+}
+
+func TestMessageImp_Recipients_ReturnsCorrectList(t *testing.T) {
+	msg := createMessageImp()
+	msg.recipients = []string{"user1@example.com", "user2@example.com"}
+
+	recipients := msg.Recipients()
+	if len(recipients) != 2 {
+		t.Fatalf("Expected 2 recipients, got %d", len(recipients))
+	}
+	if recipients[0] != "user1@example.com" {
+		t.Errorf("Expected first recipient 'user1@example.com', got '%s'", recipients[0])
+	}
+	if recipients[1] != "user2@example.com" {
+		t.Errorf("Expected second recipient 'user2@example.com', got '%s'", recipients[1])
+	}
+}
+
+func TestMessageImp_Parameters_ReturnsCorrectMap(t *testing.T) {
+	msg := createMessageImp()
+	msg.parameters["key1"] = "value1"
+	msg.parameters["key2"] = "value2"
+
+	params := msg.Parameters()
+	if len(params) != 2 {
+		t.Fatalf("Expected 2 parameters, got %d", len(params))
+	}
+	if params["key1"] != "value1" {
+		t.Errorf("Expected key1='value1', got '%v'", params["key1"])
+	}
+	if params["key2"] != "value2" {
+		t.Errorf("Expected key2='value2', got '%v'", params["key2"])
+	}
+}
+
+func TestMessageImp_Body_WithButton_CallsOneButtonTemplate(t *testing.T) {
+	msg := createMessageImp()
+	msg.templateID = "welcome"
+	msg.locale = "en-US"
+	msg.buttonLink = "https://example.com/verify"
+
+	mockLoc := &mockLocalizer{
+		localizeStringFunc: func(id, lang string) (string, error) {
+			// Mock all localization calls that might occur
+			switch id {
+			case "btn.welcome":
+				return "Verify Account", nil
+			case "service.owner", "service.name":
+				return "Test Service", nil
+			default:
+				return fmt.Sprintf("localized:%s", id), nil
+			}
+		},
+	}
+	mockDP := &mockDomainProvider{}
+
+	body, err := msg.Body(mockLoc, mockDP)
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+	if body == "" {
+		t.Error("Expected non-empty body")
+	}
+	// Body should be HTML from one-button template
+	// We can't test exact content without knowing template implementation,
+	// but we can verify it succeeded
+}
+
+func TestMessageImp_Body_WithoutButton_CallsEmailNotification(t *testing.T) {
+	msg := createMessageImp()
+	msg.templateID = "notification"
+	msg.locale = "en-US"
+	msg.buttonLink = "" // No button
+
+	mockLoc := &mockLocalizer{}
+	mockDP := &mockDomainProvider{}
+
+	body, err := msg.Body(mockLoc, mockDP)
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+	if body == "" {
+		t.Error("Expected non-empty body")
+	}
+}
+
+func TestMessageImp_Body_LocalizationError_ReturnsError(t *testing.T) {
+	msg := createMessageImp()
+	msg.templateID = "welcome"
+	msg.locale = "invalid-locale"
+	msg.buttonLink = "https://example.com/verify"
+
+	mockLoc := &mockLocalizer{
+		localizeStringFunc: func(id, lang string) (string, error) {
+			return "", fmt.Errorf("localization failed for lang: %s", lang)
+		},
+	}
+	mockDP := &mockDomainProvider{}
+
+	_, err := msg.Body(mockLoc, mockDP)
+
+	if err == nil {
+		t.Error("Expected error from localization failure")
+	}
+}
+
+func TestCreateMessageImp_InitializesEmptyCollections(t *testing.T) {
+	msg := createMessageImp()
+
+	if msg.parameters == nil {
+		t.Error("Expected parameters map to be initialized")
+	}
+	if msg.recipients == nil {
+		t.Error("Expected recipients slice to be initialized")
+	}
+	if len(msg.parameters) != 0 {
+		t.Error("Expected parameters map to be empty")
+	}
+	if len(msg.recipients) != 0 {
+		t.Error("Expected recipients slice to be empty")
+	}
+}
+
+func TestMessageImp_MultipleParameterTypes_StoresCorrectly(t *testing.T) {
+	msg := createMessageImp()
+	msg.parameters["string"] = "value"
+	msg.parameters["number"] = 42
+	msg.parameters["bool"] = true
+
+	params := msg.Parameters()
+
+	if params["string"] != "value" {
+		t.Error("String parameter not stored correctly")
+	}
+	if params["number"] != 42 {
+		t.Error("Number parameter not stored correctly")
+	}
+	if params["bool"] != true {
+		t.Error("Boolean parameter not stored correctly")
+	}
+}
+
+func TestMessageImp_EmptyTemplateID_AllowedByGetter(t *testing.T) {
+	msg := createMessageImp()
+	msg.templateID = ""
+
+	// Should not panic or error
+	result := msg.TemplateID()
+	if result != "" {
+		t.Errorf("Expected empty string, got '%s'", result)
+	}
+}
+
+func TestMessageImp_EmptyLocale_AllowedByGetter(t *testing.T) {
+	msg := createMessageImp()
+	msg.locale = ""
+
+	// Should not panic or error
+	result := msg.Locale()
+	if result != "" {
+		t.Errorf("Expected empty string, got '%s'", result)
+	}
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/builder/onebutton.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/builder/onebutton.go
@@ -0,0 +1,33 @@
+package mailimp
+
+import (
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	"github.com/tech/sendico/pkg/domainprovider"
+)
+
+type OneButtonTemplate struct {
+	EmailNotificationTemplate
+}
+
+func (b *OneButtonTemplate) AddButtonText(text string) {
+	b.AddData("ButtonText", text)
+}
+
+func (b *OneButtonTemplate) AddButtonLink(link string) {
+	b.AddData("ButtonLink", link)
+}
+
+func (b *OneButtonTemplate) AddButton(text, link string) {
+	b.AddButtonText(text)
+	b.AddButtonLink(link)
+}
+
+func NewOneButton(l localizer.Localizer, dp domainprovider.DomainProvider) *OneButtonTemplate {
+	p := &OneButtonTemplate{
+		EmailNotificationTemplate: *NewEmailNotification(l, dp),
+	}
+	p.SetUnsubscribable(false)
+	p.SetButton(true)
+
+	return p
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/dummy.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/dummy.go
@@ -0,0 +1,29 @@
+package mailimp
+
+import (
+	mb "github.com/tech/sendico/notification/internal/server/notificationimp/mail/internal/builder"
+	b "github.com/tech/sendico/notification/internal/server/notificationimp/mail/messagebuilder"
+	"github.com/tech/sendico/pkg/merrors"
+	"github.com/tech/sendico/pkg/mlogger"
+)
+
+type Dummy struct {
+	logger mlogger.Logger
+}
+
+func (d *Dummy) Send(_ b.MailBuilder) error {
+	d.logger.Warn("Unexpected request to send email")
+	return merrors.NotImplemented("MailDummy::Send")
+}
+
+func (d *Dummy) MailBuilder() b.MailBuilder {
+	return mb.NewMessageBuilder()
+}
+
+func NewDummy(logger mlogger.Logger) (*Dummy, error) {
+	d := &Dummy{
+		logger: logger.Named("dummy"),
+	}
+	d.logger.Info("Mailer installed")
+	return d, nil
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/dummy_test.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/dummy_test.go
@@ -0,0 +1,98 @@
+package mailimp
+
+import (
+	"errors"
+	"testing"
+
+	mb "github.com/tech/sendico/notification/internal/server/notificationimp/mail/internal/builder"
+	"github.com/tech/sendico/pkg/merrors"
+	"github.com/tech/sendico/pkg/mlogger/factory"
+)
+
+func TestNewDummy_CreatesValidClient(t *testing.T) {
+	logger := mlogger.NewLogger(true)
+	dummy, err := NewDummy(logger)
+
+	if err != nil {
+		t.Fatalf("Unexpected error creating dummy client: %v", err)
+	}
+	if dummy == nil {
+		t.Fatal("Expected non-nil dummy client")
+	}
+}
+
+func TestDummy_Send_ReturnsNotImplementedError(t *testing.T) {
+	logger := mlogger.NewLogger(true)
+	dummy, err := NewDummy(logger)
+	if err != nil {
+		t.Fatalf("Failed to create dummy client: %v", err)
+	}
+
+	builder := mb.NewMessageBuilder()
+	err = dummy.Send(builder)
+
+	if err == nil {
+		t.Fatal("Expected error when calling Send on dummy client")
+	}
+
+	if !errors.Is(err, merrors.ErrNotImplemented) {
+		t.Errorf("Expected NotImplemented error, got: %v", err)
+	}
+}
+
+func TestDummy_MailBuilder_ReturnsValidBuilder(t *testing.T) {
+	logger := mlogger.NewLogger(true)
+	dummy, err := NewDummy(logger)
+	if err != nil {
+		t.Fatalf("Failed to create dummy client: %v", err)
+	}
+
+	builder := dummy.MailBuilder()
+
+	if builder == nil {
+		t.Fatal("Expected non-nil mail builder")
+	}
+}
+
+func TestDummy_MailBuilder_CanBuildMessage(t *testing.T) {
+	logger := mlogger.NewLogger(true)
+	dummy, err := NewDummy(logger)
+	if err != nil {
+		t.Fatalf("Failed to create dummy client: %v", err)
+	}
+
+	builder := dummy.MailBuilder()
+	msg, err := builder.
+		AddRecipient("Test User", "test@example.com").
+		SetTemplateID("welcome").
+		Build()
+
+	if err != nil {
+		t.Fatalf("Unexpected error building message: %v", err)
+	}
+	if msg == nil {
+		t.Fatal("Expected non-nil message")
+	}
+}
+
+func TestDummy_MultipleSendCalls_AllReturnError(t *testing.T) {
+	logger := mlogger.NewLogger(true)
+	dummy, err := NewDummy(logger)
+	if err != nil {
+		t.Fatalf("Failed to create dummy client: %v", err)
+	}
+
+	builder1 := dummy.MailBuilder()
+	builder2 := dummy.MailBuilder()
+
+	err1 := dummy.Send(builder1)
+	err2 := dummy.Send(builder2)
+
+	if err1 == nil || err2 == nil {
+		t.Error("Expected all Send calls to return errors")
+	}
+
+	if !errors.Is(err1, merrors.ErrNotImplemented) || !errors.Is(err2, merrors.ErrNotImplemented) {
+		t.Error("Expected all errors to be NotImplemented")
+	}
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/mailimp.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/mailimp.go
@@ -0,0 +1,174 @@
+package mailimp
+
+import (
+	"crypto/tls"
+	"time"
+
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	mb "github.com/tech/sendico/notification/internal/server/notificationimp/mail/internal/builder"
+	"github.com/tech/sendico/notification/internal/server/notificationimp/mail/internal/mailkey"
+	mmail "github.com/tech/sendico/notification/internal/server/notificationimp/mail/messagebuilder"
+	"github.com/tech/sendico/pkg/domainprovider"
+	"github.com/tech/sendico/pkg/merrors"
+	"github.com/tech/sendico/pkg/mlogger"
+	mutil "github.com/tech/sendico/pkg/mutil/config"
+	mduration "github.com/tech/sendico/pkg/mutil/duration"
+	mail "github.com/xhit/go-simple-mail/v2"
+	"go.uber.org/zap"
+)
+
+// Client implements a mail client
+type Client struct {
+	logger mlogger.Logger
+	server *mail.SMTPServer
+	client *mail.SMTPClient
+	from   string
+	l      localizer.Localizer
+	dp     domainprovider.DomainProvider
+}
+
+// Config represents the mail configuration
+type GSMConfig struct {
+	Username    *string `mapstructure:"username,omitempty" yaml:"username,omitempty"`
+	UsernameEnv *string `mapstructure:"username_env,omitempty" yaml:"username_env,omitempty"`
+	Password    *string `mapstructure:"password" yaml:"password"`
+	PasswordEnv *string `mapstructure:"password_env" yaml:"password_env"`
+	Host        string  `mapstructure:"host" yaml:"host"`
+	Port        int     `mapstructure:"port" yaml:"port"`
+	From        string  `mapstructure:"from" yaml:"from"`
+	TimeOut     int     `mapstructure:"network_timeout" yaml:"network_timeout"`
+}
+
+func (c *Client) sendImp(m mmail.Message, msg *mail.Email) error {
+	err := msg.Send(c.client)
+	if err != nil {
+		c.logger.Warn("Error sending email", zap.Error(err), zap.String("template_id", m.TemplateID()), zap.Strings("recipients", msg.GetRecipients()))
+	} else {
+		c.logger.Info("Email sent", zap.Strings("recipients", msg.GetRecipients()), zap.String("template_id", m.TemplateID()))
+	}
+	// TODO: add amplitude notification
+	return err
+}
+
+// Send sends an email message to the provided address and with the provided subject
+func (c *Client) Send(r mmail.MailBuilder) error {
+	// New email simple html with inline and CC
+
+	r.AddData("ServiceName", c.l.ServiceName()).AddData("SupportMail", c.l.SupportMail())
+	m, err := r.Build()
+	if err != nil {
+		c.logger.Warn("Failed to build message", zap.Error(err))
+		return err
+	}
+	body, err := m.Body(c.l, c.dp)
+	if err != nil {
+		c.logger.Warn("Failed to build message body", zap.Error(err))
+		return err
+	}
+	if (len(body) == 0) || (len(m.Recipients()) == 0) {
+		c.logger.Warn("Malformed messge", zap.String("template_id", m.TemplateID()),
+			zap.String("locale", m.Locale()), zap.Strings("recipients", m.Recipients()),
+			zap.Int("body_size", len(body)))
+		return merrors.InvalidArgument("malformed message")
+	}
+	subj, err := mailkey.Subject(c.l, m.Parameters(), m.TemplateID(), m.Locale())
+	if err != nil {
+		c.logger.Warn("Failed to localize subject", zap.Error(err), zap.String("template_id", m.TemplateID()),
+			zap.String("locale", m.Locale()), zap.Strings("recipients", m.Recipients()),
+			zap.Int("body_size", len(body)))
+		return err
+	}
+	msg := mail.NewMSG()
+	msg.SetFrom(c.from).
+		AddTo(m.Recipients()...).
+		SetSubject(subj).
+		SetBody(mail.TextHTML, body)
+
+	// Call Send and pass the client
+	if err = c.sendImp(m, msg); err != nil {
+		c.logger.Info("Failed to send an email, attempting to reconnect...",
+			zap.Error(err),
+			zap.String("template", m.TemplateID()), zap.Strings("addresses", m.Recipients()), zap.String("locale", m.Locale()))
+
+		c.client = nil
+		c.client, err = c.server.Connect()
+		if err != nil {
+			c.logger.Warn("Failed to reconnect mail client",
+				zap.Error(err),
+				zap.String("template", m.TemplateID()), zap.Strings("addresses", m.Recipients()), zap.String("locale", m.Locale()))
+			return err
+		}
+		c.logger.Info("Connection has been successfully restored",
+			zap.Error(err),
+			zap.String("template", m.TemplateID()), zap.Strings("addresses", m.Recipients()), zap.String("locale", m.Locale()))
+
+		err = c.sendImp(m, msg)
+		if err != nil {
+			c.logger.Warn("Failed to send message after mail client recreation",
+				zap.Error(err),
+				zap.String("template", m.TemplateID()), zap.Strings("addresses", m.Recipients()), zap.String("locale", m.Locale()))
+			return err
+		}
+	}
+
+	return err
+}
+
+func (c *Client) MailBuilder() mmail.MailBuilder {
+	return mb.NewMessageBuilder()
+}
+
+// NewClient return a new mail
+func NewClient(logger mlogger.Logger, l localizer.Localizer, dp domainprovider.DomainProvider, config *GSMConfig) *Client {
+	smtpServer := mail.NewSMTPClient()
+
+	// SMTP Server
+	smtpServer.Host = config.Host
+	if config.Port < 1 {
+		logger.Warn("Invalid mail client port configuration, defaulting to 465", zap.Int("port", config.Port))
+		config.Port = 465
+	}
+	smtpServer.Port = config.Port
+	smtpServer.Username = mutil.GetConfigValue(logger, "username", "username_env", config.Username, config.UsernameEnv)
+	smtpServer.Password = mutil.GetConfigValue(logger, "password", "password_env", config.Password, config.PasswordEnv)
+	smtpServer.Encryption = mail.EncryptionSSL
+
+	// Since v2.3.0 you can specified authentication type:
+	// - PLAIN (default)
+	// - LOGIN
+	// - CRAM-MD5
+	// server.Authentication = mail.AuthPlain
+
+	// Variable to keep alive connection
+	smtpServer.KeepAlive = true
+
+	// Timeout for connect to SMTP Server
+	smtpServer.ConnectTimeout = mduration.Param2Duration(config.TimeOut, time.Second)
+
+	// Timeout for send the data and wait respond
+	smtpServer.SendTimeout = mduration.Param2Duration(config.TimeOut, time.Second)
+
+	// Set TLSConfig to provide custom TLS configuration. For example,
+	// to skip TLS verification (useful for testing):
+	smtpServer.TLSConfig = &tls.Config{InsecureSkipVerify: true}
+
+	// SMTP client
+	lg := logger.Named("client")
+	smtpClient, err := smtpServer.Connect()
+	if err != nil {
+		lg.Warn("Failed to connect", zap.Error(err))
+	} else {
+		lg.Info("Connected successfully", zap.String("username", smtpServer.Username), zap.String("host", config.Host))
+	}
+
+	from := config.From + " <" + smtpServer.Username + ">"
+
+	return &Client{
+		logger: lg,
+		server: smtpServer,
+		client: smtpClient,
+		from:   from,
+		l:      l,
+		dp:     dp,
+	}
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/mailkey/mailkey.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/mailkey/mailkey.go
@@ -0,0 +1,15 @@
+package mailkey
+
+import "github.com/tech/sendico/notification/interface/api/localizer"
+
+func Get(template, part string) string {
+	return "mail." + template + "." + part
+}
+
+func Subject(l localizer.Localizer, data map[string]any, templateID, locale string) (string, error) {
+	return l.LocalizeTemplate(Get(templateID, "subj"), data, nil, locale)
+}
+
+func Body(l localizer.Localizer, data map[string]any, templateID, locale string) (string, error) {
+	return l.LocalizeTemplate(Get(templateID, "body"), data, nil, locale)
+}
--- a/api/notification/internal/server/notificationimp/mail/internal/sendgrid.go
+++ b/api/notification/internal/server/notificationimp/mail/internal/sendgrid.go
@@ -0,0 +1,104 @@
+package mailimp
+
+import (
+	"net/http"
+	"os"
+
+	mb "github.com/tech/sendico/notification/internal/server/notificationimp/mail/internal/builder"
+	mmail "github.com/tech/sendico/notification/internal/server/notificationimp/mail/messagebuilder"
+	"github.com/tech/sendico/pkg/merrors"
+	"github.com/tech/sendico/pkg/messaging"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/sendgrid/sendgrid-go"
+	"github.com/sendgrid/sendgrid-go/helpers/mail"
+	"go.uber.org/zap"
+)
+
+type KeysConfig struct {
+	Email string `yaml:"email"`
+	Name  string `yaml:"name"`
+	URL   string `yaml:"url"`
+	ID    string `yaml:"id"`
+}
+
+type Sender struct {
+	Address string `yaml:"address"`
+	Name    string `yaml:"name"`
+}
+
+type SGEmailConfig struct {
+	Sender Sender `yaml:"sender"`
+}
+
+type SendGridConfig struct {
+	APIKeyEnv string        `yaml:"api_key_env"`
+	Email     SGEmailConfig `yaml:"email"`
+	Keys      KeysConfig    `yaml:"keys"`
+}
+
+type SendGridNotifier struct {
+	logger   mlogger.Logger
+	client   *sendgrid.Client
+	config   *SendGridConfig
+	producer messaging.Producer
+}
+
+func (sg *SendGridNotifier) Send(mb mmail.MailBuilder) error {
+	m := mail.NewV3Mail()
+
+	e := mail.NewEmail(sg.config.Email.Sender.Name, sg.config.Email.Sender.Address)
+	m.SetFrom(e)
+
+	task, err := mb.Build()
+	if err != nil {
+		sg.logger.Warn("Failed to build message", zap.Error(err))
+		return err
+	}
+	m.SetTemplateID(task.TemplateID())
+
+	p := mail.NewPersonalization()
+	for _, recipient := range task.Recipients() {
+		p.AddTos(mail.NewEmail(recipient, recipient))
+	}
+
+	for k, v := range task.Parameters() {
+		p.SetDynamicTemplateData(k, v)
+	}
+
+	m.AddPersonalizations(p)
+
+	response, err := sg.client.Send(m)
+	if err != nil {
+		sg.logger.Warn("Failed to send email", zap.Error(err), zap.Any("task", &task))
+		return err
+	}
+	if (response.StatusCode != http.StatusOK) && (response.StatusCode != http.StatusAccepted) {
+		sg.logger.Warn("Unexpected SendGrid sresponse", zap.Int("status_code", response.StatusCode),
+			zap.String("sresponse", response.Body), zap.Any("task", &task))
+		return merrors.Internal("email_notification_not_sent")
+	}
+
+	sg.logger.Info("Email sent successfully", zap.Strings("recipients", task.Recipients()), zap.String("template_id", task.TemplateID()))
+	// if err = sg.producer.SendMessage(model.NewNotification(model.NTEmail, model.NAComplete), &task); err != nil {
+	// 	sg.logger.Warn("Failed to send email statistics", zap.Error(err), zap.Strings("recipients", task.Recipients), zap.String("template_id", task.TemplateID))
+	// }
+	return nil
+}
+
+func (sg *SendGridNotifier) MailBuilder() mmail.MailBuilder {
+	return mb.NewMessageBuilder()
+}
+
+func NewSendGridNotifier(logger mlogger.Logger, producer messaging.Producer, config *SendGridConfig) (*SendGridNotifier, error) {
+	apiKey := os.Getenv(config.APIKeyEnv)
+	if apiKey == "" {
+		logger.Warn("No SendGrid API key")
+		return nil, merrors.NoData("No SendGrid API key")
+	}
+	return &SendGridNotifier{
+		logger:   logger.Named("sendgrid"),
+		client:   sendgrid.NewSendClient(apiKey),
+		config:   config,
+		producer: producer,
+	}, nil
+}
--- a/api/notification/internal/server/notificationimp/mail/mail.go
+++ b/api/notification/internal/server/notificationimp/mail/mail.go
@@ -0,0 +1,53 @@
+package mail
+
+import (
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	notification "github.com/tech/sendico/notification/interface/services/notification/config"
+	mi "github.com/tech/sendico/notification/internal/server/notificationimp/mail/internal"
+	mb "github.com/tech/sendico/notification/internal/server/notificationimp/mail/messagebuilder"
+	"github.com/tech/sendico/pkg/domainprovider"
+	"github.com/tech/sendico/pkg/merrors"
+	"github.com/tech/sendico/pkg/messaging"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/mitchellh/mapstructure"
+	"go.uber.org/zap"
+)
+
+type Client interface {
+	Send(r mb.MailBuilder) error
+	MailBuilder() mb.MailBuilder
+}
+
+type Config = notification.Config
+
+func createMailClient(logger mlogger.Logger, producer messaging.Producer, l localizer.Localizer, dp domainprovider.DomainProvider, config *Config) (Client, error) {
+	if len(config.Driver) == 0 {
+		return nil, merrors.InvalidArgument("Mail driver name must be provided")
+	}
+	logger.Info("Connecting mail client...", zap.String("driver", config.Driver))
+	if config.Driver == "dummy" {
+		return mi.NewDummy(logger)
+	}
+	if config.Driver == "sendgrid" {
+		var sgconfig mi.SendGridConfig
+		if err := mapstructure.Decode(config.Settings, &sgconfig); err != nil {
+			logger.Error("Failed to decode driver settings", zap.Error(err), zap.String("driver", config.Driver))
+			return nil, err
+		}
+		return mi.NewSendGridNotifier(logger, producer, &sgconfig)
+	}
+	if config.Driver == "client" {
+		var gsmconfing mi.GSMConfig
+		if err := mapstructure.Decode(config.Settings, &gsmconfing); err != nil {
+			logger.Error("Failed to decode driver settings", zap.Error(err), zap.String("driver", config.Driver))
+			return nil, err
+		}
+
+		return mi.NewClient(logger, l, dp, &gsmconfing), nil
+	}
+	return nil, merrors.InvalidArgument("Unkwnown mail driver: " + config.Driver)
+}
+
+func CreateMailClient(logger mlogger.Logger, sender string, producer messaging.Producer, l localizer.Localizer, dp domainprovider.DomainProvider, config *Config) (Client, error) {
+	return NewAmpliMailer(logger, sender, producer, l, dp, config)
+}
--- a/api/notification/internal/server/notificationimp/mail/messagebuilder/builder.go
+++ b/api/notification/internal/server/notificationimp/mail/messagebuilder/builder.go
@@ -0,0 +1,11 @@
+package mmail
+
+type MailBuilder interface {
+	SetAccountID(accountID string) MailBuilder
+	SetTemplateID(templateID string) MailBuilder
+	SetLocale(locale string) MailBuilder
+	AddRecipient(recipientName, recipient string) MailBuilder
+	AddButton(link string) MailBuilder
+	AddData(key, value string) MailBuilder
+	Build() (Message, error)
+}
--- a/api/notification/internal/server/notificationimp/mail/messagebuilder/datetime.go
+++ b/api/notification/internal/server/notificationimp/mail/messagebuilder/datetime.go
@@ -0,0 +1,20 @@
+package mmail
+
+import (
+	"time"
+
+	mgt "github.com/tech/sendico/pkg/mutil/time/go"
+)
+
+func AddDate(b MailBuilder, t time.Time) {
+	b.AddData("Date", mgt.ToDate(t))
+}
+
+func AddTime(b MailBuilder, t time.Time) {
+	b.AddData("Time", mgt.ToTime(t))
+}
+
+func AddDateAndTime(b MailBuilder, t time.Time) {
+	AddDate(b, t)
+	AddTime(b, t)
+}
--- a/api/notification/internal/server/notificationimp/mail/messagebuilder/message.go
+++ b/api/notification/internal/server/notificationimp/mail/messagebuilder/message.go
@@ -0,0 +1,15 @@
+package mmail
+
+import (
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	"github.com/tech/sendico/pkg/domainprovider"
+)
+
+type Message interface {
+	AccountID() string
+	TemplateID() string
+	Locale() string
+	Recipients() []string
+	Parameters() map[string]any
+	Body(l localizer.Localizer, dp domainprovider.DomainProvider) (string, error)
+}
--- a/api/notification/internal/server/notificationimp/notification.go
+++ b/api/notification/internal/server/notificationimp/notification.go
@@ -0,0 +1,68 @@
+package notificationimp
+
+import (
+	"context"
+
+	"github.com/tech/sendico/notification/interface/api"
+	mmail "github.com/tech/sendico/notification/internal/server/notificationimp/mail"
+	"github.com/tech/sendico/pkg/domainprovider"
+	na "github.com/tech/sendico/pkg/messaging/notifications/account"
+	ni "github.com/tech/sendico/pkg/messaging/notifications/invitation"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/tech/sendico/pkg/mservice"
+	"go.uber.org/zap"
+)
+
+type NotificationAPI struct {
+	logger mlogger.Logger
+	client mmail.Client
+	dp     domainprovider.DomainProvider
+}
+
+func (a *NotificationAPI) Name() mservice.Type {
+	return mservice.Notifications
+}
+
+func (a *NotificationAPI) Finish(_ context.Context) error {
+	return nil
+}
+
+func CreateAPI(a api.API) (*NotificationAPI, error) {
+	p := &NotificationAPI{
+		dp: a.DomainProvider(),
+	}
+	p.logger = a.Logger().Named(p.Name())
+
+	var err error
+	if p.client, err = mmail.CreateMailClient(p.logger.Named("mailer"), p.Name(), a.Register().Producer(), a.Localizer(), a.DomainProvider(), a.Config().Notification); err != nil {
+		p.logger.Error("Failed to create mail connection", zap.Error(err), zap.String("driver", a.Config().Notification.Driver))
+		return nil, err
+	}
+
+	db, err := a.DBFactory().NewAccountDB()
+	if err != nil {
+		p.logger.Error("Failed to create account db connection", zap.Error(err))
+		return nil, err
+	}
+	if err := a.Register().Consumer(na.NewAccountCreatedMessageProcessor(p.logger, db, p.onAccount)); err != nil {
+		p.logger.Error("Failed to create account creation handler", zap.Error(err))
+		return nil, err
+	}
+
+	if err := a.Register().Consumer(na.NewPasswordResetRequestedMessageProcessor(p.logger, db, p.onPasswordReset)); err != nil {
+		p.logger.Error("Failed to create password reset handler", zap.Error(err))
+		return nil, err
+	}
+
+	idb, err := a.DBFactory().NewInvitationsDB()
+	if err != nil {
+		p.logger.Error("Failed to create invitation db connection", zap.Error(err))
+		return nil, err
+	}
+	if err := a.Register().Consumer(ni.NewInvitationCreatedProcessor(p.logger, p.onInvitation, idb, db)); err != nil {
+		p.logger.Error("Failed to create invitation creation handler", zap.Error(err))
+		return nil, err
+	}
+
+	return p, nil
+}
--- a/api/notification/internal/server/notificationimp/notification_test.go
+++ b/api/notification/internal/server/notificationimp/notification_test.go
@@ -0,0 +1,541 @@
+package notificationimp
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"github.com/tech/sendico/notification/interface/api/localizer"
+	mmail "github.com/tech/sendico/notification/internal/server/notificationimp/mail/messagebuilder"
+	"github.com/tech/sendico/pkg/db/storable"
+	"github.com/tech/sendico/pkg/domainprovider"
+	"github.com/tech/sendico/pkg/model"
+	"github.com/tech/sendico/pkg/mlogger/factory"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+)
+
+// Mock implementations
+
+type mockMailClient struct {
+	sendFunc        func(r mmail.MailBuilder) error
+	mailBuilderFunc func() mmail.MailBuilder
+	sentMessages    []mockSentMessage
+}
+
+type mockSentMessage struct {
+	accountID  string
+	templateID string
+	locale     string
+	recipients []string
+	data       map[string]string
+	buttonLink string
+}
+
+func (m *mockMailClient) Send(r mmail.MailBuilder) error {
+	if m.sendFunc != nil {
+		return m.sendFunc(r)
+	}
+	// Record the message for verification
+	msg, _ := r.Build()
+	if msg != nil {
+		sent := mockSentMessage{
+			accountID:  msg.AccountID(),
+			templateID: msg.TemplateID(),
+			locale:     msg.Locale(),
+			recipients: msg.Recipients(),
+			data:       make(map[string]string),
+		}
+		// Extract string parameters
+		for k, v := range msg.Parameters() {
+			if str, ok := v.(string); ok {
+				sent.data[k] = str
+			}
+		}
+		m.sentMessages = append(m.sentMessages, sent)
+	}
+	return nil
+}
+
+func (m *mockMailClient) MailBuilder() mmail.MailBuilder {
+	if m.mailBuilderFunc != nil {
+		return m.mailBuilderFunc()
+	}
+	return &mockMailBuilder{
+		accountID:  "",
+		templateID: "",
+		locale:     "",
+		recipients: []string{},
+		data:       make(map[string]string),
+	}
+}
+
+type mockMailBuilder struct {
+	accountID  string
+	templateID string
+	locale     string
+	recipients []string
+	buttonLink string
+	data       map[string]string
+}
+
+func (m *mockMailBuilder) SetAccountID(accountID string) mmail.MailBuilder {
+	m.accountID = accountID
+	return m
+}
+
+func (m *mockMailBuilder) SetTemplateID(templateID string) mmail.MailBuilder {
+	m.templateID = templateID
+	return m
+}
+
+func (m *mockMailBuilder) SetLocale(locale string) mmail.MailBuilder {
+	m.locale = locale
+	return m
+}
+
+func (m *mockMailBuilder) AddRecipient(recipientName, recipient string) mmail.MailBuilder {
+	m.recipients = append(m.recipients, recipient)
+	return m
+}
+
+func (m *mockMailBuilder) AddButton(link string) mmail.MailBuilder {
+	m.buttonLink = link
+	return m
+}
+
+func (m *mockMailBuilder) AddData(key, value string) mmail.MailBuilder {
+	m.data[key] = value
+	return m
+}
+
+func (m *mockMailBuilder) Build() (mmail.Message, error) {
+	if len(m.recipients) == 0 {
+		return nil, errors.New("recipient not set")
+	}
+	return &mockMessage{
+		accountID:  m.accountID,
+		templateID: m.templateID,
+		locale:     m.locale,
+		recipients: m.recipients,
+		parameters: convertToAnyMap(m.data),
+	}, nil
+}
+
+type mockMessage struct {
+	accountID  string
+	templateID string
+	locale     string
+	recipients []string
+	parameters map[string]any
+}
+
+func (m *mockMessage) AccountID() string              { return m.accountID }
+func (m *mockMessage) TemplateID() string             { return m.templateID }
+func (m *mockMessage) Locale() string                 { return m.locale }
+func (m *mockMessage) Recipients() []string           { return m.recipients }
+func (m *mockMessage) Parameters() map[string]any     { return m.parameters }
+func (m *mockMessage) Body(l localizer.Localizer, dp domainprovider.DomainProvider) (string, error) {
+	return "", nil
+}
+
+func convertToAnyMap(m map[string]string) map[string]any {
+	result := make(map[string]any)
+	for k, v := range m {
+		result[k] = v
+	}
+	return result
+}
+
+type mockDomainProvider struct {
+	getFullLinkFunc func(linkElem ...string) (string, error)
+}
+
+func (m *mockDomainProvider) GetFullLink(linkElem ...string) (string, error) {
+	if m.getFullLinkFunc != nil {
+		return m.getFullLinkFunc(linkElem...)
+	}
+	return "https://example.com/link", nil
+}
+
+func (m *mockDomainProvider) GetAPILink(linkElem ...string) (string, error) {
+	return "https://api.example.com/link", nil
+}
+
+// Tests for onAccount handler
+
+func TestOnAccount_ValidAccount_SendsWelcomeEmail(t *testing.T) {
+	mockClient := &mockMailClient{}
+	mockDP := &mockDomainProvider{}
+
+	api := &NotificationAPI{
+		logger: mlogger.NewLogger(true),
+		client: mockClient,
+		dp:     mockDP,
+	}
+
+	account := &model.Account{
+		AccountPublic: model.AccountPublic{
+			AccountBase: model.AccountBase{
+				Base: storable.Base{
+					ID: primitive.NewObjectID(),
+				},
+				Describable: model.Describable{
+					Name: "Test User",
+				},
+			},
+			UserDataBase: model.UserDataBase{
+				Login:  "user@example.com",
+				Locale: "en-US",
+			},
+		},
+		VerifyToken: "test-verify-token",
+	}
+
+	err := api.onAccount(context.Background(), account)
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	if len(mockClient.sentMessages) != 1 {
+		t.Fatalf("Expected 1 message sent, got %d", len(mockClient.sentMessages))
+	}
+
+	sent := mockClient.sentMessages[0]
+	if sent.templateID != "welcome" {
+		t.Errorf("Expected template 'welcome', got '%s'", sent.templateID)
+	}
+	if sent.locale != "en-US" {
+		t.Errorf("Expected locale 'en-US', got '%s'", sent.locale)
+	}
+	if len(sent.recipients) != 1 || sent.recipients[0] != "user@example.com" {
+		t.Errorf("Expected recipient 'user@example.com', got %v", sent.recipients)
+	}
+}
+
+func TestOnAccount_LinkGenerationFails_ReturnsError(t *testing.T) {
+	mockClient := &mockMailClient{}
+	mockDP := &mockDomainProvider{
+		getFullLinkFunc: func(linkElem ...string) (string, error) {
+			return "", errors.New("link generation failed")
+		},
+	}
+
+	api := &NotificationAPI{
+		logger: mlogger.NewLogger(true),
+		client: mockClient,
+		dp:     mockDP,
+	}
+
+	account := &model.Account{
+		AccountPublic: model.AccountPublic{
+			AccountBase: model.AccountBase{
+				Base: storable.Base{
+					ID: primitive.NewObjectID(),
+				},
+				Describable: model.Describable{
+					Name: "Test User",
+				},
+			},
+			UserDataBase: model.UserDataBase{
+				Login:  "user@example.com",
+				Locale: "en-US",
+			},
+		},
+		VerifyToken: "test-verify-token",
+	}
+
+	err := api.onAccount(context.Background(), account)
+
+	if err == nil {
+		t.Fatal("Expected error from link generation failure")
+	}
+
+	if len(mockClient.sentMessages) != 0 {
+		t.Error("No message should be sent when link generation fails")
+	}
+}
+
+func TestOnAccount_SendFails_ReturnsError(t *testing.T) {
+	mockClient := &mockMailClient{
+		sendFunc: func(r mmail.MailBuilder) error {
+			return errors.New("send failed")
+		},
+	}
+	mockDP := &mockDomainProvider{}
+
+	api := &NotificationAPI{
+		logger: mlogger.NewLogger(true),
+		client: mockClient,
+		dp:     mockDP,
+	}
+
+	account := &model.Account{
+		AccountPublic: model.AccountPublic{
+			AccountBase: model.AccountBase{
+				Base: storable.Base{
+					ID: primitive.NewObjectID(),
+				},
+				Describable: model.Describable{
+					Name: "Test User",
+				},
+			},
+			UserDataBase: model.UserDataBase{
+				Login:  "user@example.com",
+				Locale: "en-US",
+			},
+		},
+		VerifyToken: "test-verify-token",
+	}
+
+	err := api.onAccount(context.Background(), account)
+
+	if err == nil {
+		t.Fatal("Expected error from send failure")
+	}
+}
+
+// Tests for onInvitation handler
+
+func TestOnInvitation_ValidInvitation_SendsInvitationEmail(t *testing.T) {
+	mockClient := &mockMailClient{}
+	mockDP := &mockDomainProvider{}
+
+	api := &NotificationAPI{
+		logger: mlogger.NewLogger(true),
+		client: mockClient,
+		dp:     mockDP,
+	}
+
+	account := &model.Account{
+		AccountPublic: model.AccountPublic{
+			AccountBase: model.AccountBase{
+				Base: storable.Base{
+					ID: primitive.NewObjectID(),
+				},
+				Describable: model.Describable{
+					Name: "Inviter User",
+				},
+			},
+			UserDataBase: model.UserDataBase{
+				Locale: "en-US",
+			},
+		},
+	}
+
+	invitationID := primitive.NewObjectID()
+	invitation := &model.Invitation{}
+	invitation.ID = invitationID
+	invitation.Content.Email = "invitee@example.com"
+	invitation.Content.Name = "Invitee Name"
+
+	err := api.onInvitation(context.Background(), account, invitation)
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	if len(mockClient.sentMessages) != 1 {
+		t.Fatalf("Expected 1 message sent, got %d", len(mockClient.sentMessages))
+	}
+
+	sent := mockClient.sentMessages[0]
+	if sent.templateID != "invitation" {
+		t.Errorf("Expected template 'invitation', got '%s'", sent.templateID)
+	}
+	if sent.locale != "en-US" {
+		t.Errorf("Expected locale 'en-US', got '%s'", sent.locale)
+	}
+	if len(sent.recipients) != 1 || sent.recipients[0] != "invitee@example.com" {
+		t.Errorf("Expected recipient 'invitee@example.com', got %v", sent.recipients)
+	}
+	if sent.data["InviterName"] != "Inviter User" {
+		t.Errorf("Expected InviterName 'Inviter User', got '%s'", sent.data["InviterName"])
+	}
+	if sent.data["Name"] != "Invitee Name" {
+		t.Errorf("Expected Name 'Invitee Name', got '%s'", sent.data["Name"])
+	}
+}
+
+func TestOnInvitation_LinkGenerationFails_ReturnsError(t *testing.T) {
+	mockClient := &mockMailClient{}
+	mockDP := &mockDomainProvider{
+		getFullLinkFunc: func(linkElem ...string) (string, error) {
+			return "", errors.New("link generation failed")
+		},
+	}
+
+	api := &NotificationAPI{
+		logger: mlogger.NewLogger(true),
+		client: mockClient,
+		dp:     mockDP,
+	}
+
+	account := &model.Account{
+		AccountPublic: model.AccountPublic{
+			AccountBase: model.AccountBase{
+				Base: storable.Base{
+					ID: primitive.NewObjectID(),
+				},
+				Describable: model.Describable{
+					Name: "Inviter User",
+				},
+			},
+			UserDataBase: model.UserDataBase{
+				Locale: "en-US",
+			},
+		},
+	}
+
+	invitationID := primitive.NewObjectID()
+	invitation := &model.Invitation{}
+	invitation.ID = invitationID
+	invitation.Content.Email = "invitee@example.com"
+	invitation.Content.Name = "Invitee Name"
+
+	err := api.onInvitation(context.Background(), account, invitation)
+
+	if err == nil {
+		t.Fatal("Expected error from link generation failure")
+	}
+
+	if len(mockClient.sentMessages) != 0 {
+		t.Error("No message should be sent when link generation fails")
+	}
+}
+
+// Tests for onPasswordReset handler
+
+func TestOnPasswordReset_ValidReset_SendsResetEmail(t *testing.T) {
+	mockClient := &mockMailClient{}
+	mockDP := &mockDomainProvider{}
+
+	api := &NotificationAPI{
+		logger: mlogger.NewLogger(true),
+		client: mockClient,
+		dp:     mockDP,
+	}
+
+	account := &model.Account{
+		AccountPublic: model.AccountPublic{
+			AccountBase: model.AccountBase{
+				Base: storable.Base{
+					ID: primitive.NewObjectID(),
+				},
+				Describable: model.Describable{
+					Name: "Test User",
+				},
+			},
+			UserDataBase: model.UserDataBase{
+				Login:  "user@example.com",
+				Locale: "en-US",
+			},
+		},
+	}
+
+	resetToken := "reset-token-123"
+
+	err := api.onPasswordReset(context.Background(), account, resetToken)
+
+	if err != nil {
+		t.Fatalf("Unexpected error: %v", err)
+	}
+
+	if len(mockClient.sentMessages) != 1 {
+		t.Fatalf("Expected 1 message sent, got %d", len(mockClient.sentMessages))
+	}
+
+	sent := mockClient.sentMessages[0]
+	if sent.templateID != "reset-password" {
+		t.Errorf("Expected template 'reset-password', got '%s'", sent.templateID)
+	}
+	if sent.locale != "en-US" {
+		t.Errorf("Expected locale 'en-US', got '%s'", sent.locale)
+	}
+	if len(sent.recipients) != 1 || sent.recipients[0] != "user@example.com" {
+		t.Errorf("Expected recipient 'user@example.com', got %v", sent.recipients)
+	}
+	if sent.data["URL"] == "" {
+		t.Error("Expected URL parameter to be set")
+	}
+}
+
+func TestOnPasswordReset_LinkGenerationFails_ReturnsError(t *testing.T) {
+	mockClient := &mockMailClient{}
+	mockDP := &mockDomainProvider{
+		getFullLinkFunc: func(linkElem ...string) (string, error) {
+			return "", errors.New("link generation failed")
+		},
+	}
+
+	api := &NotificationAPI{
+		logger: mlogger.NewLogger(true),
+		client: mockClient,
+		dp:     mockDP,
+	}
+
+	account := &model.Account{
+		AccountPublic: model.AccountPublic{
+			AccountBase: model.AccountBase{
+				Base: storable.Base{
+					ID: primitive.NewObjectID(),
+				},
+				Describable: model.Describable{
+					Name: "Test User",
+				},
+			},
+			UserDataBase: model.UserDataBase{
+				Login:  "user@example.com",
+				Locale: "en-US",
+			},
+		},
+	}
+
+	err := api.onPasswordReset(context.Background(), account, "reset-token")
+
+	if err == nil {
+		t.Fatal("Expected error from link generation failure")
+	}
+
+	if len(mockClient.sentMessages) != 0 {
+		t.Error("No message should be sent when link generation fails")
+	}
+}
+
+func TestOnPasswordReset_SendFails_ReturnsError(t *testing.T) {
+	mockClient := &mockMailClient{
+		sendFunc: func(r mmail.MailBuilder) error {
+			return errors.New("send failed")
+		},
+	}
+	mockDP := &mockDomainProvider{}
+
+	api := &NotificationAPI{
+		logger: mlogger.NewLogger(true),
+		client: mockClient,
+		dp:     mockDP,
+	}
+
+	account := &model.Account{
+		AccountPublic: model.AccountPublic{
+			AccountBase: model.AccountBase{
+				Base: storable.Base{
+					ID: primitive.NewObjectID(),
+				},
+				Describable: model.Describable{
+					Name: "Test User",
+				},
+			},
+			UserDataBase: model.UserDataBase{
+				Login:  "user@example.com",
+				Locale: "en-US",
+			},
+		},
+	}
+
+	err := api.onPasswordReset(context.Background(), account, "reset-token")
+
+	if err == nil {
+		t.Fatal("Expected error from send failure")
+	}
+}
--- a/api/notification/internal/server/notificationimp/password_reset.go
+++ b/api/notification/internal/server/notificationimp/password_reset.go
@@ -0,0 +1,30 @@
+package notificationimp
+
+import (
+	"context"
+
+	"github.com/tech/sendico/pkg/model"
+	"go.uber.org/zap"
+)
+
+func (a *NotificationAPI) onPasswordReset(context context.Context, account *model.Account, resetToken string) error {
+	var link string
+	var err error
+	if link, err = a.dp.GetFullLink("password", "reset", account.ID.Hex(), resetToken); err != nil {
+		a.logger.Warn("Failed to generate password reset link", zap.Error(err), zap.String("login", account.Login))
+		return err
+	}
+	mr := a.client.MailBuilder().
+		AddRecipient(account.Name, account.Login).
+		SetAccountID(account.ID.Hex()).
+		SetLocale(account.Locale).
+		AddButton(link).
+		AddData("URL", link).
+		SetTemplateID("reset-password")
+	if err := a.client.Send(mr); err != nil {
+		a.logger.Warn("Failed to send password reset email", zap.Error(err), zap.String("login", account.Login))
+		return err
+	}
+	a.logger.Info("Password reset email sent", zap.String("login", account.Login))
+	return nil
+}
--- a/api/notification/internal/server/server.go
+++ b/api/notification/internal/server/server.go
@@ -0,0 +1,11 @@
+package server
+
+import (
+	serverimp "github.com/tech/sendico/notification/internal/server/internal"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/tech/sendico/pkg/server"
+)
+
+func Create(logger mlogger.Logger, file string, debug bool) (server.Application, error) {
+	return serverimp.Create(logger, file, debug)
+}