[Mailman-Users] mailman and virtual mailboxes on same domain

Mark Sapiro mark at msapiro.net
Fri Feb 24 08:33:37 CET 2012

Cédric Jeanneret wrote:
>I'm having big troubles with a special setup:
>one server, one domain (say foo.bar.com), virtual mailboxes (managed by 
>ldap), and a mailman
>I'm using postfix and dovecot for the "standard" mail part, and this 
>works well. My problem is for mailman:
>While trying to send email to my-list at foo.bar.com, postfix tells me 
>Feb 23 09:49:25 sqdf3 postfix/smtpd[14760]: connect from myHost[myIP]
>Feb 23 09:49:25 sqdf3 postfix/smtpd[14760]: 1CAECBE69AC: 
>Feb 23 09:49:25 sqdf3 postfix/cleanup[14765]: 1CAECBE69AC: 
>message-id=<20120223084925.0B86537AAEF at mail.myhost>
>Feb 23 09:49:25 sqdf3 postfix/qmgr[14759]: 1CAECBE69AC: 
>from=<me at myhost>, size=513, nrcpt=1 (queue active)
>Feb 23 09:49:25 sqdf3 postfix/smtpd[14760]: disconnect from 
>Feb 23 09:49:25 sqdf3 postfix/virtual[14766]: 1CAECBE69AC: 
>to=<|/var/lib/mailman/mail/mailman post my-list at foo.bar.com>, 
>orig_to=<my-list at foo.bar.com>, relay=virtual, delay=0.03, 
>delays=0.02/0/0/0.01, dsn=5.1.1, status=bounced (unknown user: 
>"|/var/lib/mailman/mail/mailman post my-list at foo.bar.com")

So you have an alias in a virtual mapping. Aliases only work with
'local' delivery.

>transport_maps = hash:/etc/postfix/transport
>virtual_transport = virtual
>virtual_transport_maps = hash:/etc/postfix/transport

What is this for?

>virtual_alias_maps = hash:/etc/aliases, 
>ldap:/etc/postfix/ldap-aliases.cf, hash:/etc/postfix/virtual

/etc/aliases is not in the correct format for virtual_alias_maps. It
should not be there.

>virtual_alias_mbox = ldap:/etc/postfix/ldap-mbox.cf
>virtual_mailbox_maps = ldap:/etc/postfix/ldap-accounts.cf
>virtual_gid_maps = static:104
>virtual_minimum_uid = 8
>virtual_uid_maps = static:8
>virtual_mailbox_domains = foo.bar.com
>virtual_mailbox_base = /
>mailman_destination_recipient_limit = 1
>smtpd_sasl_type = dovecot
>The virtual user delivery works just fine. Here's a sniped of my 
>transport hash:
>my-list at foo.bar.com mailman:

So mail to my-list at foo.bar.com should use a 'mailman' transport,
presumably defined in master.cf as postfix_to_mailman.py. If you want
to use this, there should be no aliases for Mailman at all there
should only be transport maps entries of the form

my-list at foo.bar.com mailman:
my-list-admin at foo.bar.com mailman:
my-list-bounces at foo.bar.com mailman:
etc. A total of 10 per list since non-list mail for this domain should
be handled by the 'virtual' transport. The FAQ at
<http://wiki.list.org/x/ZoCj> may help.

>@foo.bar.com virtual:
>Any help is welcome, if you need any other information regarding the 
>postfix configuration, please ask - I'm pretty sure it's obvious, but I 
>must be blind :(.
>Mailman version: 1:2.1.13-5 (on debian squeeze)
>Postfix version: 2.7.1-1+squeeze1
>Dovecot version: 1:1.2.15-7

Please also see the FAQ at <http://wiki.list.org/x/OIDD>.

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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