[Mailman-Users] mailman won't send messages

[Tom Robinson]

CentOS 7.3.1611
mailman-2.1.15-21.el7_1.x86_64 (RPM)
postfix-2.10.1-6.el7.x86_64

Hi,

I configured mailman last year and have had several lists working. It seems something has changed
and now we can't send messages via the lists any more.

Following the
https://wiki.list.org/DOC/4.78%20Troubleshooting-%20No%20mail%20going%20out%20to%20lists%20members
guide didn't help.

# check_perms
No problems found

# ps auxww| grep mailmanctl |grep -v grep
mailman  10512  0.0  0.1 231612 10548 ?        Ss   15:40   0:00 /usr/bin/python
/usr/lib/mailman/bin/mailmanctl -s start

Aliases are defined in /etc/mailmain/aliases which is quite large as we have a lot of lists.

# wc -l /etc/mailman/aliases
246 /etc/mailman/aliases
grep mailman /etc/mailman/aliases | wc -l
173

And in postfix I have this for aliases:

main.cf:alias_maps = hash:/etc/aliases, hash:/etc/mailman/aliases

Typically the Aliases look like this:

mailman-loop: /var/lib/mailman/data/owner-bounces.mbox
# STANZA START: mailman
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

SMTP is up and running. This is a working mailserver delvering email 24/7.
# netstat -na |grep ":25 "

tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN    
tcp6       0      0 :::25                   :::*                    LISTEN    
tcp6       0      0 ::1:25                  ::1:36704               TIME_WAIT 
# telnet localhost 25
Trying ::1...
Connected to localhost.
Escape character is '^]'.
220 camber.motec.com.au ESMTP Postfix
quit
221 2.0.0 Bye
Connection closed by foreign host.

This maybe something but I don't know:

# ls -l ~mailman/locks
ls: cannot access /usr/lib/mailman/locks: No such file or directory

But actually I think the locks are in /var/lock ...

# ls -l /var/lock/mailman/
total 8
-rw-rw-r--. 2 mailman mailman 58 May 24  2017 master-qrunner
-rw-rw-r--. 2 mailman mailman 58 May 24  2017 master-qrunner.camber.motec.com.au.10512

# ps aux | grep 10512 | grep -v grep
mailman  10512  0.0  0.1 231612 10548 ?        Ss   15:40   0:00 /usr/bin/python
/usr/lib/mailman/bin/mailmanctl -s start

Any clues for solving this are much appreciated.

Kind regards,

Tom

-- 

Tom Robinson
IT Manager/System Administrator

MoTeC Pty Ltd

121 Merrindale Drive
Croydon South
3136 Victoria
Australia

T: +61 3 9761 5050
F: +61 3 9761 5051   
E: tom.robinson at motec.com.au


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