Ich betreibe einen Server mit ISPConfig 2 und bekomme ein per PHP-Script verschicktes Mail mit folgender Meldung retour:
Code:
This is the mail system at host server2.serverdomain.at.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<doris@zieldomain.at>: host mx.sil.at[86.59.12.207] said: 550-Verification
failed for <web7.webdomain.at@server2.serverdomain.at>
550-Previous (cached) callout verification failure 550 Unknown sender
(in reply to RCPT TO command)
Reporting-MTA: dns; server2.serverdomain.at
X-Postfix-Queue-ID: 4EB7CB6001
X-Postfix-Sender: rfc822; web7.webdomain.at@server2.serverdomain.at
Arrival-Date: Tue, 26 Jun 2012 11:01:57 +0200 (CEST)
Final-Recipient: rfc822; doris@zieldomain.at
Action: failed Status: 5.0.0
Remote-MTA: dns; mx.sil.at
Diagnostic-Code: smtp; 550-Verification failed for
<web7.webdomain.at@server2.serverdomain.at> 550-Previous (cached)
callout verification failure 550 Unknown sender
Jetzt ist meine Frage:
Stimmt etwas mit meiner Mailserver-Konfiguration nicht, oder mit der des Mailservers der Zieldomain?
Mails an den eigenen und andere Mailserver funktionieren tadellos.