Recipient address rejected: User unknown in virtual mailbox table

[Jan]

Hello folks,

my system is: Postfix / Plesk 12.5.30 / Cent OS 6.7. For some reason, mailingst mails are bouncing atm. Bounce is:

<[email protected]>: host www5.jluehr.de[217.160.107.247]
said: 550 5.1.1 <[email protected]>: Recipient address
rejected: User unknown in virtual mailbox table

Non-mailman (aka regular mailboxes) are working fine. Postfix log is:

Mar 3 10:00:34 www5 postfix/smtpd[32657]: connect from postfix.iai.uni-bonn.de[131.220.8.4]
Mar 3 10:00:34 www5 postfix/smtpd[32657]: NOQUEUE: reject: RCPT from postfix.iai.uni-bonn.de[131.220.8.4]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<postfix.iai.uni-bonn.de>
Mar 3 10:00:34 www5 postfix/smtpd[32657]: disconnect from postfix.iai.uni-bonn.de[131.220.8.4]
Mar 3 10:00:34 www5 /usr/lib64/plesk-9.0/psa-pc-remote[27277]: Message aborted.
Mar 3 10:00:34 www5 /usr/lib64/plesk-9.0/psa-pc-remote[27277]: Message aborted.

This list and mailman were working fine a few days ago. I'ven't changed much in the servers configuration. This issue may be related to change the hostnams - but the is not clear atm.

What my be wrong here? How can I fix mailman?

Thanks,
Jan

 

[Jan]

Additional info:

• If I create a new mailing-list, everyting is fine
• Old mailing-Lists are not listed in postmap -s /var/spool/postfix/plesk/virtual - how can I regenerate this file?
• Changing the server's name deletes all mailman-entries in postmap -s /var/spool/postfix/plesk/virtual - How can I fix that?
• System is: 12.5.30 Update #23, last updated at Mar 2, 2016 10:15 AM

 

[Jan]

Edit:

• If I create a new mailing-list, everyting is fine for this specific list

 

[Thomas Schröder]

Just recently happened to me too.
Workaround: for each mailing list, disabling and re-enabling it in the Plesk mailing list interface solves the problem.
Alternatively (e.g. when having too many lists) a small bash-script (/usr/psa/bin/maillist) should do the same.