postfix-to-mailman-centos.py
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#! /usr/bin/env python
# Configuration variables - Change these for your site if necessary.
MailmanHome = "/var/lib/mailman"; # Mailman home directory.
MailmanOwner = "postmaster@example.com"; # Postmaster and abuse mail recipient.
MailmanScripts = "/usr/lib/mailman"; # Where mailman scripts reside
# End of configuration variables.
# postfix-to-mailman-2.1.py (to be installed as postfix-to-mailman.py)
#
# Interface mailman to a postfix with a mailman transport. Does not require
# the creation of _any_ aliases to connect lists to your mail system.
#
# Dax Kelson, dkelson@gurulabs.com, Sept 2002.
# coverted from qmail to postfix interface
# Jan 2003: Fixes for Mailman 2.1
# Thanks to Simen E. Sandberg <senilix@gallerbyen.net>
# Feb 2003: Change the suggested postfix transport to support VERP
# Thanks to Henrique de Moraes Holschuh <henrique.holschuh@ima.sp.gov.br>
#
# This script was originally qmail-to-mailman.py by:
# Bruce Perens, bruce@perens.com, March 1999.
# This is free software under the GNU General Public License.
#
# This script is meant to be called from ~mailman/postfix-to-mailman.py.
# It catches all mail to a virtual domain, eg "lists.example.com".
# It looks at the recipient for each mail message and decides if the mail is
# addressed to a valid list or not, and bounces the message with a helpful
# suggestion if it's not addressed to a list. It decides if it is a posting,
# a list command, or mail to the list administrator, by checking for the
# -admin, -owner, and -request addresses. It will recognize a list as soon
# as the list is created, there is no need to add _any_ aliases for any list.
# It recognizes mail to postmaster, mailman-owner, abuse, mailer-daemon, root,
# and owner, and routes those mails to MailmanOwner as defined in the
# configuration variables, above.
#
# INSTALLATION:
#
# Install this file as ~mailman/postfix-to-mailman.py
#
# To configure a virtual domain to connect to mailman, edit Postfix thusly:
#
# /etc/postfix/main.cf:
# relay_domains = ... lists.example.com
# transport_maps = hash:/etc/postfix/transport
# mailman_destination_recipient_limit = 1
#
# /etc/postfix/transport:
# lists.example.com mailman:
#
# /etc/postfix/master.cf
# mailman unix - n n - - pipe
# flags=FR user=mailman:mailman
# argv=/var/mailman/postfix-to-mailman.py ${nexthop} ${user}
#
#
# Replace list.example.com above with the name of the domain to be connected
# to Mailman. Note that _all_ mail to that domain will go to Mailman, so you
# don't want to put the name of your main domain here. Typically a virtual
# domain lists.domain.com is used for Mailman, and domain.com for regular
# email.
#
import sys, os, re, string
def main():
os.nice(5) # Handle mailing lists at non-interactive priority.
# delete this if you wish
os.chdir(MailmanHome + "/lists")
try:
local = sys.argv[2]
except:
# This might happen if we're not using Postfix
sys.stderr.write("LOCAL not set?\n")
sys.exit(1)
local = string.lower(local)
local = re.sub("^mailman-","",local)
names = ("root", "postmaster", "mailer-daemon", "mailman-owner", "owner",
"abuse")
for i in names:
if i == local:
os.execv("/usr/sbin/sendmail",
("/usr/sbin/sendmail", MailmanOwner))
sys.exit(0)
type = "post"
types = (("-admin$", "admin"),
("-owner$", "owner"),
("-request$", "request"),
("-bounces$", "bounces"),
("-confirm$", "confirm"),
("-join$", "join"),
("-leave$", "leave"),
("-subscribe$", "subscribe"),
("-unsubscribe$", "unsubscribe"))
for i in types:
if re.search(i[0],local):
type = i[1]
local = re.sub(i[0],"",local)
if os.path.exists(local):
os.execv(MailmanScripts + "/mail/mailman",
(MailmanScripts + "/mail/mailman", type, local))
else:
bounce()
sys.exit(75)
def bounce():
bounce_message = """\
TO ACCESS THE MAILING LIST SYSTEM: Start your web browser on
http://%s/
That web page will help you subscribe or unsubscribe, and will
give you directions on how to post to each mailing list.\n"""
sys.stderr.write(bounce_message % (sys.argv[1]))
sys.exit(1)
try:
sys.exit(main())
except SystemExit, argument:
sys.exit(argument)
except Exception, argument:
info = sys.exc_info()
trace = info[2]
sys.stderr.write("%s %s\n" % (sys.exc_type, argument))
sys.stderr.write("Line %d\n" % (trace.tb_lineno))
sys.exit(75) # Soft failure, try again later.