[Mailman-Users] Alias problem?

[Jian Gao]

I know my question has been asked before many times. I tried to google 
out a solution myself and struggled two days with failure. So I came 
here to ask and hope you can help me.

I setup an email server, installed postfix, courier, mysql(virtual 
domain/user), clamav, spamassassin, MailScanner. I have tested and all 
works fine. (Server OS is Centos 5.5)

Then I installed mailman by "yum install mailman". Basically followed 
instruction from here:
http://davmp.kimanddave.com/2008/03/30/installing-mailman-to-use-https-on-centos-51/

After create the mailman list, I added two subscribers and test the mail 
list. The maillog shows:

|Aug  5 14:00:26 mail postfix/virtual[2984]: C5C3142F01CB: 
to=<mailman at mydomain.com>, relay=virtual, delay=0.4, 
delays=0.37/0.02/0/0.01, dsn=5.1.1, status=bounced (unknown user: 
"mailman at mydomain.com")|

It seems postfix couldn't find the alias, am I right?

Here is some of my configurations:
[root at mail ~]# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases,hash:/etc/mailman/alias
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
header_checks = regexp:/etc/postfix/header_checks
html_directory = no
inet_interfaces = all
mail_owner = postfix
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = mail.mydomain.com, localhost, localhost.localdomain
myhostname = mail.mydomain.com
mynetworks = 127.0.0.0/8
newaliases_path = /usr/bin/newaliases.postfix
proxy_read_maps = $local_recipient_maps $mydestination 
$virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps 
$virtual_mailbox_domains $relay_recipient_maps $relay_domains 
$canonical_maps $sender_canonical_maps $recipient_canonical_maps 
$relocated_maps $transport_maps $mynetworks $virtual_mailbox_limit_maps
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
sample_directory = /usr/share/doc/postfix-2.3.3/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_recipient_restrictions = permit_mynetworks, 
permit_sasl_authenticated, reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_tls_cert_file = /etc/postfix/smtpd.cert
smtpd_tls_key_file = /etc/postfix/smtpd.key
smtpd_use_tls = yes
transport_maps = proxy:mysql:/etc/postfix/mysql-virtual_transports.cf
unknown_local_recipient_reject_code = 550
virtual_alias_domains =
virtual_alias_maps = 
proxy:mysql:/etc/postfix/mysql-virtual_forwardings.cf, 
mysql:/etc/postfix/mysql-virtual_email2email.cf
virtual_create_maildirsize = yes
virtual_gid_maps = static:5000
virtual_mailbox_base = /home/vmail
virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-virtual_domains.cf
virtual_mailbox_limit_maps = 
proxy:mysql:/etc/postfix/mysql-virtual_mailbox_limit_maps.cf
virtual_mailbox_limit_override = yes
virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf
virtual_maildir_extended = yes
virtual_maildir_limit_message = "The user you are trying to reach is 
over quota."
virtual_overquota_bounce = yes
virtual_uid_maps = static:5000

============================================

[root at mail ~]# cat /etc/mailman/aliases
# This file is generated by Mailman, and is kept in sync with the
# binary hash file aliases.db. YOU SHOULD NOT MANUALLY EDIT THIS FILE
# unless you know what you're doing, and can keep the two files properly
# in sync. If you screw it up, you're on your own.

# The ultimate loop stopper address
mailman-loop: /var/lib/mailman/data/owner-bounces.mbox

# STANZA START: mailman
# CREATED: Thu Aug 5 13:42:42 2010
mailman: "|/usr/lib/mailman/mail/mailman post mailman"
mailman-admin: "|/usr/lib/mailman/mail/mailman admin mailman"
mailman-bounces: "|/usr/lib/mailman/mail/mailman bounces mailman"
mailman-confirm: "|/usr/lib/mailman/mail/mailman confirm mailman"
mailman-join: "|/usr/lib/mailman/mail/mailman join mailman"
mailman-leave: "|/usr/lib/mailman/mail/mailman leave mailman"
mailman-owner: "|/usr/lib/mailman/mail/mailman owner mailman"
mailman-request: "|/usr/lib/mailman/mail/mailman request mailman"
mailman-subscribe: "|/usr/lib/mailman/mail/mailman subscribe mailman"
mailman-unsubscribe: "|/usr/lib/mailman/mail/mailman unsubscribe mailman"
# STANZA END: mailman
=================================================
[root at mail mailman]# cat /etc/mailman/mm_cfg.py
# -*- python -*-

# Copyright (C) 1998,1999,2000,2001,2002 by the Free Software 
Foundation, Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

"""This module contains your site-specific settings.

 From a brand new distribution it should be copied to mm_cfg.py. If you
already have an mm_cfg.py, be careful to add in only the new settings you
want. Mailman's installation procedure will never overwrite your mm_cfg.py
file.

The complete set of distributed defaults, with documentation, are in the 
file
Defaults.py. In mm_cfg.py, override only those you want to change, after the

from Defaults import *

line (see below).

Note that these are just default settings; many can be overridden via the
administrator and user interfaces on a per-list or per-user basis.

"""

###############################################
# Here's where we get the distributed defaults.

from Defaults import *
import pwd, grp

##################################################
# Put YOUR site-specific settings below this line.

##############################################################
# Here's where we override shipped defaults with settings #
# suitable for the RPM package. #
MAILMAN_UID = pwd.getpwnam('mailman')[2]
MAILMAN_GID = grp.getgrnam('mailman')[2]

##############################################################
# Set URL and email domain names #
#
# Mailman needs to know about (at least) two fully-qualified domain
# names (fqdn)
#
# 1) the hostname used in your urls (DEFAULT_URL_HOST)
# 2) the hostname used in email addresses for your domain 
(DEFAULT_EMAIL_HOST)
#
# For example, if people visit your Mailman system with
# "http://www.dom.ain/mailman" then your url fqdn is "www.dom.ain",
# and if people send mail to your system via "yourlist at dom.ain" then
# your email fqdn is "dom.ain". DEFAULT_URL_HOST controls the former,
# and DEFAULT_EMAIL_HOST controls the latter. Mailman also needs to
# know how to map from one to the other (this is especially important
# if you're running with virtual domains). You use
# "add_virtualhost(urlfqdn, emailfqdn)" to add new mappings.

# Default to using the FQDN of machine mailman is running on.
# If this is not correct for your installation delete the following 5
# lines that acquire the FQDN and manually edit the hosts instead.

#from socket import *
#try:
# fqdn = getfqdn()
#except:
# fqdn = 'mm_cfg_has_unknown_host_domains'

DEFAULT_URL_HOST = 'mail.mydomain.com'
DEFAULT_EMAIL_HOST = 'mydomain.com'
add_virtualhost('mail.mydomain.com', 'mydomain.com')

# Because we've overriden the virtual hosts above add_virtualhost
# MUST be called after they have been defined.

add_virtualhost(DEFAULT_URL_HOST, DEFAULT_EMAIL_HOST)


##############################################################
# Put YOUR site-specific configuration below, in mm_cfg.py . #
# See Defaults.py for explanations of the values. #

# Note - if you're looking for something that is imported from mm_cfg, 
but you
# didn't find it above, it's probably in Defaults.py.

MTA = 'Postfix'
=============================

Thanks for help.

Jian