Hello,
I have mailman 2.1.18 and courier 0.73 as packaged by Debian on a Debian
Jessie GNU/Linux server.
They correctly run a few mailing lists, but now I've tried adding a new
one and it does not work, with mailman reporting the "Group mismatch
error" to the Courier MTA mail server, with "daemon" being the group
mailman expects to run with, and "mailboxes" being the group it is
actually being run with.
Courier is configured with userdb database of virtual users. Maildirs
are stored under /home/mail/domain/user/... in the server filesystem and
the files are owned by the "mailboxes" user and group. The mailboxes
user has UID=5000 and the mailboxes group has GID=5000. Those IDs are
specified into the userdb file for each virtual user.
Between the working lists (e.g. arduino@lists...) and the new one
(dlinguistico2002@lists...) there is actually a small difference in how
the lists aliases are handled by Courier. In the former case I have no
aliases, but virtual users in userdb for each alias that forwards
messages to mailman, e.g. arduino@lists... has a single .courier file
that forwards messages to
|/var/lib/mailman/mail/mailman post arduino
then arduino-bounces@lists... has a single .courier file that forwards
messages to
|/var/lib/mailman/mail/mailman bounces arduino
and so on. In other words they all are real mailboxes, not aliases, that
forward messages using the appropriate mailman command. In the latter
case (dlinguistico2002@lists...) instead I have one single account
(dlingustico2002@lists...) with additional .courier-whatever files
configured to forward messages to the corresponding mailman commands,
e.g. I have the .courier-bounces file that contains
|/var/lib/mailman/mail/mailman bounces dlinguistico2002
Given mailman is not complaining for the arduino@lists... mailing list,
I assume either courier is running it in the "daemon" group for that
list, or mailman is working even if executed in the mailboxes group.
Whichever, I'd like the same to happen for the dlinguistico@lists...
list without having to create all the accounts like I did for the other
lists. Is it possible?
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