[Mailman-Users] Postfix and group execution

[Ye|land]

Anyone know how to set the group that postfix executes a mailman script as? I don't see any configuration option for this in the man for postfix.

The error I'm dealing with is :
       Command output: Group mismatch error.
       Mailman expected the mail wrapper
       script to be executed as group
       "mailman", but the system's mail
       server executed the mail script as
       group "users".  Try tweaking the mail
       server to run the script as group
       "mailman", or re-run configure,
       providing the command line option
       `--with-mail-gid=users'.

Many thanks