[Mailman-Users] Group mismatch error (mail wrapper script)

Mark Sapiro mark at msapiro.net
Tue Feb 28 18:10:20 CET 2012

Rosenbaum, Larry M. wrote:

>#5.3.0 x-unix; Group mismatch error. Mailman expected the mail wrapper script to be executed as one of the following groups: [mail, postfix, mailman, nobody, daemon], but the system's mail server executed the mail script as group: "users". Try tweaking the mail server to run the script as one of these groups: [mail, postfix, mailman, nobody, daemon], or re-run configure providing the command line option: '--with-mail-gid=users'.>
>Where do I need to look for the error?
>Running Mailman 2.1.14 on RHEL6 with Postfix.

With Postfix, assuming you are using aliases, Postfix invokes the
delivery pipe as the user (and that user's primary group) who owns the
aliases.db file in which the alias was found.

If you have the recommended Postfix-Mailman integration, and RHEL file
locations, this means /etc/mailman/aliases.db should be owned by

See the FAQs at <http://wiki.list.org/x/KYCB> and

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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