[Mailman-Users] postfix + mailman + mailboxes on the same domain and server

[Christian]

Hello,

I'm trying to get the mailing list to work with postfix and I read a lot
of information about the difficult usage of it.

-> It should be possible for a mailbox user 'user at domain.tld' to send at
the mailing list 'list at domain.tld'.

The only one I found in the archives that addresses my problem:
https://mail.python.org/pipermail/mailman-users/2012-February/072967.html

Actually I always get the same error message:
/var/log/mail.log
*************************************************************
Nov  6 15:50:42 mail postfix/smtpd[757]: connect from IP
Nov  6 15:50:43 mail postfix/smtpd[757]: Anonymous TLS connection
established from IP: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256
(128/128 bits)
Nov  6 15:50:43 mail postfix/smtpd[757]: NOQUEUE: reject: RCPT from IP:
550 5.1.1 <list at domain.tld>: Recipient address rejected: User unknown in
virtual mailbox table; from=<user at domain.tld> to=<list at domain.tld>
proto=ESMTP helo=<[local-IP]>
Nov  6 15:50:48 mail postfix/smtpd[757]: disconnect from IP
*************************************************************

I hope that my posted configs help you to address the issure.
The usual comments has been removed.


/etc/mailman/mm_cfg.py
*************************************************************
from Defaults import *
MAILMAN_SITE_LIST = 'mailman'
DEFAULT_URL_PATTERN = 'http://%s/cgi-bin/mailman/'
IMAGE_LOGOS  = '/images/mailman/'
DEFAULT_EMAIL_HOST = 'domain.tld'
DEFAULT_URL_HOST   = 'www.domain.tld'
add_virtualhost(DEFAULT_URL_HOST, DEFAULT_EMAIL_HOST)
DEFAULT_SERVER_LANGUAGE = 'de'
USE_ENVELOPE_SENDER    = 0              # Still used?
DEFAULT_SEND_REMINDERS = 0
MTA = None # So that mailman skips aliases generation
DEB_LISTMASTER = 'postmaster at domain.tld'
POSTFIX_STYLE_VIRTUAL_DOMAINS = ['domain.tld']
POSTFIX_MAP_CMD = '/var/lib/mailman/data/virtual_to_transport'
*************************************************************

root at mail:/var/lib/mailman/data# ls -l
insgesamt 64
-rw-rw-r-- 1 list list  1843 Nov  6 15:07 aliases
-rw-rw-r-- 1 list list 12288 Nov  6 15:07 aliases.db
-rw-rw-r-- 1 root list    10 Okt 20 11:48 last_mailman_version
-rw-r--r-- 1 root list 14100 Sep 15 08:04 sitelist.cfg
-rw-rw-r-- 1 list list  1606 Nov  6 15:07 transport-mailman
-rw-r--r-- 1 list list 12288 Nov  6 15:07 transport-mailman.db
-rw-rw---- 1 root list  1698 Nov  6 15:07 virtual-mailman
-rwxr-x--- 1 root list   149 Nov  6 15:07 virtual_to_transport

/var/lib/mailman/data/transport-mailman
*************************************************************
mailman-loop at domain.tld mailman:

mailman at domain.tld              mailman:
mailman-admin at domain.tld        mailman:
mailman-bounces at domain.tld      mailman:
mailman-confirm at domain.tld      mailman:
mailman-join at domain.tld         mailman:
mailman-leave at domain.tld        mailman:
mailman-owner at domain.tld        mailman:
mailman-request at domain.tld      mailman:
mailman-subscribe at domain.tld    mailman:
mailman-unsubscribe at domain.tld  mailman:

list at domain.tld              mailman:
list-admin at domain.tld        mailman:
list-bounces at domain.tld      mailman:
list-confirm at domain.tld      mailman:
list-join at domain.tld        mailman:
list-leave at domain.tld        mailman:
list-owner at domain.tld        mailman:
list-request at domain.tld      mailman:
list-subscribe at domain.tld    mailman:
list-unsubscribe at domain.tld  mailman:
*************************************************************

/etc/postfix/master.cf
*************************************************************
mailman unix  -       n       n       -       -       pipe
  flags=FR user=list
  argv=/var/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user}
*************************************************************

/etc/postfix/main.cf
*************************************************************
smtpd_banner = $myhostname
biff = no
append_dot_mydomain = no
readme_directory = /usr/share/doc/postfix
html_directory = /usr/share/doc/postfix/html

myhostname = mail.domain.tld
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = mail.domain.tld
mydestination = mail.domain.tld, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
virtual_mailbox_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = ipv4
disable_vrfy_command = yes

smtpd_helo_required = yes
smtpd_sasl_type=dovecot
smtpd_sasl_path=private/auth_dovecot
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = yes
broken_sasl_auth_clients = yes

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 $smtpd_sender_login_maps
virtual_mailbox_base = /
virtual_mailbox_domains =
proxy:mysql:/etc/postfix/mysql/postfix-mysql-virtual_domains_maps.cf
virtual_alias_maps =
proxy:mysql:/etc/postfix/mysql/postfix-mysql-virtual_alias_maps.cf
virtual_mailbox_maps =
proxy:mysql:/etc/postfix/mysql/postfix-mysql-virtual_mailbox_maps.cf
virtual_minimum_uid = 5000
virtual_uid_maps = static:5000
virtual_gid_maps = static:5000
virtual_transport = lmtps:unix:private/dovecot-lmtp
transport_maps = hash:/var/lib/mailman/data/transport-mailman,
mysql:/etc/postfix/mysql/postfix-mysql-virtual_transport_maps.cf

maximal_queue_lifetime = 1d
bounce_queue_lifetime = 1d
queue_run_delay = 300s
maximal_backoff_time = 1800s
minimal_backoff_time = 300s
message_size_limit = 524288000
smtpd_soft_error_limit = 3
smtpd_error_sleep_time = 10s
smtpd_hard_error_limit = ${stress?1}${stress:5}

mailman_destination_recipient_limit = 1
relay_recipient_maps = hash:/var/lib/mailman/data/transport-mailman
*************************************************************
The only edit here was in transport_maps and the last both lines.

I don't know which steps in the manuals are important for me and which not.
Please help me to correct that.

Greetings Christian