smtp relay läuft über selfhost.de
Das ist die Fehlermeldung von Arcor:
Reporting-MTA: dns; mail-in-13.arcor-online.net
X-Postfix-Queue-ID: 3p7F7q5dWzqe221
X-Postfix-Sender: rfc822;
xxxxx@arcor.de
Arrival-Date: Sat, 28 Nov 2015 15:09:43 +0100 (CET)
Final-Recipient: rfc822;
alias_von_ds@mydomain.de
Original-Recipient: rfc822;alias_von_ds@mydomain.de
Action: failed
Status: 5.7.1
Remote-MTA: dns; mail.mydomain.de
Diagnostic-Code: smtp; 554 5.7.1 <alias_von_ds@mydomain.de>: Relay access
denied
Kann man damit was Anfangen?