Description:

Ok I posted this in the Forum but was asked to open a bug report.

After I updated and restarted my server postfix can't give mails to mailman instead mailman throws this error:

Command died with
status 2: "/usr/lib/mailman/mail/mailman post admins". Command output:
Group mismatch error. Mailman expected the mail wrapper script to be
executed as group "80", but the system's mail server executed the mail
script as group "mailman". Try tweaking the mail server to run the script
as group "80", or re-run configure, providing the command line option
`--with-mail-gid=mailman'.

But the mailman group has ID 80:

grep mailman /etc/group
mailman:x:80:

and all the alias tables and transport maps from mailman are owned by the mailman group so postfix is running the wrapper script as the mailman group.

ls -l /var/lib/mailman/data/
insgesamt 60
-rw-r----- 1 mailman mailman 41 6. Feb 2011 adm.pw
-rw-rw---- 1 mailman mailman 1887 6. Feb 2011 aliases
-rw-rw---- 1 mailman mailman 12288 26. Feb 16:31 aliases.db
-rw-r----- 1 mailman mailman 41 6. Feb 2011 creator.pw
-rw-rw---- 1 mailman mailman 6 27. Feb 09:05 master-qrunner.pid
-rw-r--r-- 1 mailman mailman 14100 18. Feb 16:51 sitelist.cfg
-rw-rw---- 1 mailman mailman 1184 6. Feb 2011 virtual-mailman
-rw-rw---- 1 mailman mailman 12288 6. Feb 2011 virtual-mailman.db


Additional info:
* package version(s)
2.1.14-2