feat(alerting): enable email notifiter

pkg/services/alerting/notifier.go

@@ -46,23 +46,23 @@ type Notification struct {
 
 type EmailNotifier struct {
 	To  string
-	From string
 	log log.Logger
 }
 
 func (this *EmailNotifier) Dispatch(alertResult *AlertResult) {
-	/*
 	this.log.Info("Sending email")
 	cmd := &m.SendEmailCommand{
-			Data:     map[string]interface{}{},
-			To:       []string{},
-			Info:     "",
+		Data: map[string]interface{}{
+			"Description":     alertResult.Description,
+			"TriggeredAlerts": alertResult.TriggeredAlerts,
+		},
+		To:       []string{this.To},
+		Info:     "Alert result",
 		Massive:  false,
 		Template: "",
 	}
 
 	bus.Dispatch(cmd)
-	*/
 }
 
 type WebhookNotifier struct {
@@ -125,7 +125,6 @@ var createNotifier = func(notificationType string, settings *simplejson.Json) No
 	if notificationType == "email" {
 		return &EmailNotifier{
 			To:  settings.Get("to").MustString(),
-			From: settings.Get("from").MustString(),
 			log: log.New("alerting.notification.email"),
 		}
 	}