[Mailman-Users] duplicate entry: "mailman at lists.example.org" in virtual-mailman.db

[Manuel Vögele]

Thanks for your help.

I cannot remove the @localhost mapping because that would cause postfix
to append @example.org which is then handled by dovecot (and thus will
fail). This is also the reason wh i can't put @example.org as the
preferred host for the list. However since this is caused by a bug which
will eventually be fixed i decided to workaround it with a manually
created mapping

mailman at lists.example.org mailman at localhost

which supersedes the faulty entry created by mailman.