On 11:59 AM, Masaharu Kawada wrote:
One of my customer gets the following log message into /var/log/maillog at around 12:00 every day.
---</var/log/maillog>--- 12:00:04 relay postfix/pickup[6279]: 244811C805C: uid=41 from=<mailman> 12:00:04 relay postfix/cleanup[21529]: 244811C805C: message-id=<20100215030004.244811C805C@example.co.jp> 12:00:04 relay postfix/qmgr[20068]: 244811C805C: from=<mailman@example.co.jp>, size=1728, nrcpt=1 (queue active) 12:00:04 relay postfix/local[21232]: 244811C805C: to=<mailman@example.co.jp>, orig_to=<mailman>, relay=local, delay=0.17, delays=0.05/0/0/0.12, dsn=2.0.0, status=sent (delivered to command: /usr/lib/mailman/mail/mailman post mailman)
This question should have been posted to mailman-users@python.org, but since I am the Mailman developer that probably would have answered it there, I'll try to answer here.
The above Postfix log entries are from a normal message to a mailman list (such as this one). It is a message that was sent to mailman@example.co.jp from mailman@example.co.jp.
Since it occurs daily at noon, the default time for sending digests, I think it is related to that.
This message seems that it delivers a command '/usr/lib/mailman/mail/mailman post' to execute against the mailman mailing list, however, the customer never use mailman mailing list on their system. One thing that I doubt is that a cronjob in /etc/cron.d/mailman does something relevant of this because the post time of the messages is always reight after the following work.
---</etc/cron.d/mailman>--- 0 12 * * * mailman /usr/lib/mailman/cron/senddigests
or
0,5,10,15,20,25,30,35,40,45,50,55 * * * * mailman /usr/lib/mailman/cron/gate_news
It is almost certainly not gate_news. I'm sure it is senddigests.
Every Mailman 2.1.x installation has a site list which is normally named 'mailman'.
I'm afraid that I don't have /etc/mailman/aliases file of cutomer's, but by default(in my test env), it should looks like below.
</etc/mailman/aliease> # STANZA START: mailman # CREATED: Mon Jan 25 16:48:18 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
Yes, it would be that.
My questions are as follows.
1.What exactly is the cause the message in /var/log/maillog?
A message sent to mailman@example.co.jp which via the alias above is posted to the 'mailman' list by piping to the command
/usr/lib/mailman/mail/mailman post mailman
2.Why does the messages send to mailman(mailman@example.co.jp) user even though that mailing list never be used?
The mailing list is used. The address is the source of some messages and is also on the listinfo overview page in the message
If you are having trouble using the lists, please contact mailman@example.co.jp.
and on the admin overview page in the message
(Send questions and comments to mailman@example.co.jp.)
What exactly is happening is not clear. My first guess is that mailman@example.co.jp is a member of the mailman@example.co.jp list, and every day, a digest is sent to that member and posted back to the list ensuring there will be another digest the next day, but there is protection in Mailman against this kind of loop, so that probably isn't it.
The bottom line is there is a mailman@example.co.jp list, and someone needs to examine its membership and archives and also Mailman's logs on that machine to figure this out.
If you need to follow up, please join mailman-users@python.org <http://mail.python.org/mailman/listinfo/mailman-users> and follow up there.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan