Custom domains

api/.env.sample

@@ -7,6 +7,7 @@ API_ALLOW_IPS=127.0.0.1
 TOKEN_SECRET=secret
 TOKEN_EXPIRATION=168h
 API_TOKEN_EXPIRATION=8760h
+API_DNS_RESOLVER=
 PSK=
 DOMAINS=example1.net,example2.com
 LOG_FILE=/var/log/api.log
@@ -46,6 +47,7 @@ SMTP_CLIENT_USER=
 SMTP_CLIENT_PASSWORD=
 SMTP_CLIENT_SENDER=from@example.net
 SMTP_CLIENT_SENDER_NAME=From Name
+SMTP_CLIENT_DKIM_SELECTOR=
 SMTP_CLIENT_REPORT=
 
 OTP_EXPIRATION=15m

api/compose.yml

@@ -16,6 +16,8 @@ services:
       - api:/var/log
     networks:
       net:
+    dns:
+      - ${API_DNS_RESOLVER}
 
   app:
     build: ../app

api/config/config.go

@@ -50,14 +50,15 @@ type RedisConfig struct {
 }
 
 type SMTPClientConfig struct {
-	Host        string
-	Port        string
-	User        string
-	Password    string
-	Sender      string
-	SenderName  string
-	Report      string
-	TokenSecret string
+	Host         string
+	Port         string
+	User         string
+	Password     string
+	Sender       string
+	SenderName   string
+	DkimSelector string
+	Report       string
+	TokenSecret  string
 }
 
 type ServiceConfig struct {
@@ -192,14 +193,15 @@ func New() (Config, error) {
 			TLSInsecureSkipVerify: os.Getenv("REDIS_TLS_INSECURE_SKIP_VERIFY") == "true",
 		},
 		SMTPClient: SMTPClientConfig{
-			Host:        os.Getenv("SMTP_CLIENT_HOST"),
-			Port:        os.Getenv("SMTP_CLIENT_PORT"),
-			User:        os.Getenv("SMTP_CLIENT_USER"),
-			Password:    os.Getenv("SMTP_CLIENT_PASSWORD"),
-			Sender:      os.Getenv("SMTP_CLIENT_SENDER"),
-			SenderName:  os.Getenv("SMTP_CLIENT_SENDER_NAME"),
-			Report:      os.Getenv("SMTP_CLIENT_REPORT"),
-			TokenSecret: os.Getenv("TOKEN_SECRET"),
+			Host:         os.Getenv("SMTP_CLIENT_HOST"),
+			Port:         os.Getenv("SMTP_CLIENT_PORT"),
+			User:         os.Getenv("SMTP_CLIENT_USER"),
+			Password:     os.Getenv("SMTP_CLIENT_PASSWORD"),
+			Sender:       os.Getenv("SMTP_CLIENT_SENDER"),
+			SenderName:   os.Getenv("SMTP_CLIENT_SENDER_NAME"),
+			DkimSelector: os.Getenv("SMTP_CLIENT_DKIM_SELECTOR"),
+			Report:       os.Getenv("SMTP_CLIENT_REPORT"),
+			TokenSecret:  os.Getenv("TOKEN_SECRET"),
 		},
 
 		Service: ServiceConfig{