Mark Your diagnosis was exactly right - the problem was that the messages were being handled by maildrop, and not by local(8). The Postfix README explained the things I hadn't understood.
Because my server is a pre-configured appliance I need to be careful with changing transport for the whole domain, but Postfix lets you change the transport for individual addresses, like this: [EMAIL PROTECTED] local: [EMAIL PROTECTED] local: etc Putting these into the Postfix transport table got Postfix sending messages for these addresses to the Mailman commands. Of course it didn't work straight off, but a look at the maillog showed a very clear diagnostic from Mailman telling me that Postfix was trying to execute the commands with a gid of nobody, when I had it set up to use the Postfix gid. After reconfiguring Mailman with the right gid, the lists started to work and now my service is back on the air. A big thankyou to Mark for identifying the problem so clearly and quickly. I'll look at integrating more closely with Postfix and moving the aliases as suggested in a few days. Thanks again. Rod ----- Original Message ----- From: "Mark Sapiro" <[EMAIL PROTECTED]> To: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> Cc: <mailman-users@python.org> Sent: Thursday, December 06, 2007 1:42 AM Subject: Re: [Mailman-Users] Postfix won't recognise lists built by Mailman. > [EMAIL PROTECTED] wrote: > > > >I build a Mailman list called test, add an address to the mailing list, and > >manually add the relevant alias to /etc/postfix/aliases (and then run postalias), and finally send a message to the > >list address. > > > You may find it easier to use Postfix-Mailman integration as described at > <http://www.list.org/mailman-install/node13.html>, but that may cause group > mismatch errors if you don't already have them, so I suggest not doing that > immediately. > > > >The error response "Undelivered Mail Returned to Sender" comes in by email, > >and the Postfix mail log says: > >---------- > >Dec 5 15:27:04 localhost postfix/pipe[3185]: 15373754FE: to=<[EMAIL > >PROTECTED]>, > >relay=maildrop, delay=0.07, delays=0.04/0/0/0.02, dsn=5.1.1, status=bounced > >(user unknown. > >Command output: Invalid user specified. ) > >---------- > > > >The Mailman logs show no activity, i.e. the message has not been handled by > >Mailman. What seems to be happening is that Postfix is trying to deliver the message to a mailbox, > >instead of to the command in the aliases file. There is no mailbox 'test' on > >this server. > > > Actually, it's trying to deliver to a maildrop. See > <http://www.postfix.org/MAILDROP_README.html> > > > >Aliases contains this line: > >---------- > >test: "|/var/www/html/mailman/mail/mailman post test" > >---------- > > > >I've 'set allow_mail_to_commands = alias' in Postfix's main.cf. > > > It never gets to your alias because the maildrop delivery takes priority. > > > >The question for Mailman experts who also know Postfix is - is this clearly > >a problem with my Postfix setup, or could the problem be that I have the wrong --with-mail-gid ?? If I had the mail-gid wrong, would this show up in the Mailman logs? > > > It is not a group mismatch. No, a group mismatch is not logged in Mailman, but > there will be a clear message from the wrapper both in the Postfix log and the > DSN sent back to the poster. > > > >After painfully trying lots of systematic changes to the Postfix setup > >without success, all I can think of now is either I'm using the wrong --with-mail-gid or I need to move the Mailman aliases into a separate mm.aliases file (then run postalias and amend the Postfix main.cf to recognise this) and change the permissions on that. If neither of those work I really have no idea where to go next. > > > You should move the aliases per the documentation I linked above, but that > won't solve this problem. You need to make sure that 'maildrop' is not > configured as the transport for this domain. > > -- > Mark Sapiro <[EMAIL PROTECTED]> The highway is for gamblers, > San Francisco Bay Area, California better use your sense - B. Dylan > > > ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org Security Policy: http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq01.027.htp
