Allow remote authentication to be optional

decke · Dec 12, 2018 · a70b148 · a70b148
1 parent ba30ddd
commit a70b148
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/main.go b/main.go
@@ -27,11 +27,16 @@ var (
 
 func handler(peer smtpd.Peer, env smtpd.Envelope) error {
 
+	var auth smtp.Auth
 	host, _, _ := net.SplitHostPort(*remoteHost)
 
+	if *remoteUser != "" && *remotePass != "" {
+		auth = smtp.PlainAuth("", *remoteUser, *remotePass, host)
+	}
+
 	return smtp.SendMail(
 		*remoteHost,
-		smtp.PlainAuth("", *remoteUser, *remotePass, host),
+		auth,
 		env.Sender,
 		env.Recipients,
 		env.Data,