Hi,
this is the bounce message:
Reporting-MTA: dns; vps.domain.com
X-Postfix-Queue-ID: 1F1E2122F33
X-Postfix-Sender: rfc822;
[email protected]
Arrival-Date: Tue, 20 May 2014 17:20:42 +0200 (CEST)
Final-Recipient: rfc822;
[email protected]
Action: failed
Status: 5.4.6...