[Mailman-Users] Group mismatch error

[John Dennis]

On Tue, 2005-05-10 at 23:45 +0100, John Poltorak wrote:
> Can someone explain what I need to do when I get this error - I don't want 
> to have to re-run configure.
> 
> Group mismatch error.  Mailman expected the mail
> wrapper script to be executed as group "mail", but
> the system's mail server executed the mail script as
> group "mailnull".  Try tweaking the mail server to run the
> script as group "mail", or re-run configure,
> providing the command line option `--with-mail-gid=mailnull'.
> 554 5.3.0 unknown mailer error 2

As has beem said, you have two choices, either re-configure, re-build,
or change how your MTA executes child processes (or possibly just how
your MTA executes)

If this was working before then something must have changed with your
MTA, but you didn't say which MTA you're using. Some MTA's can be
configured via their config file to run with specific identities (e.g.
the postfix mail_owner parameter). Ths is an MTA issue, please consult
your MTA documentation.
-- 
John Dennis <jdennis at redhat.com>