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<metalug-development@lists.metalug.com>: Command died with status 2:
    "/var/lib/mailman/mail/mailman post metalug-development". Command output:
    Group mismatch error.  Mailman expected the mail wrapper script to be
    executed as group "daemon", but the system's mail server executed the mail
    script as group "mailman".  Try tweaking the mail server to run the script
    as group "daemon", or re-run configure,  providing the command line option
    `--with-mail-gid=mailman'.