[Mailman-Users] iterative loop

Tue Mar 19 21:27:03 EDT 2019

Well I removed hostname.domainname.tld from mydestination in
/etc/postfix/main.cf and restarted Postfix. No dice...see below:

Mar 19 18:21:43 zarathustra postfix/smtpd[18769]: 925B210193B:
client=localhost.localdomain[127.0.0.1]
Mar 19 18:21:43 zarathustra postfix/cleanup[18673]: 925B210193B:
message-id=<mailman.99.1553044787.18654.ssan at lists.domainname.tld >
Mar 19 18:21:43 zarathustra postfix/qmgr[18094]: 925B210193B:
from=<ssan-bounces at lists.domainname.tld >, size=6805, nrcpt=3 (queue active)
Mar 19 18:21:43 zarathustra postfix/lmtp[18151]: 925B210193B:
to=<ssan at hostname.domainname.tld >, relay=mail.domainname.tld
[private/dovecot-lmtp], delay=0.03, delays=0.01/0/0/0.01, dsn=5.1.1,
status=bounced (host mail.domainname.tld [private/dovecot-lmtp] said: 550
5.1.1 <ssan at hostname.domainname.tld > User doesn't exist:
ssan at hostname.domainname.tld  (in reply to RCPT TO command))
Mar 19 18:21:43 zarathustra postfix/lmtp[18151]: 925B210193B:
to=<|/var/lib/mailman/mail/mailman at hostname.domainname.tld >,
relay=mail.domainname.tld [private/dovecot-lmtp], delay=0.03,
delays=0.01/0/0/0.01, dsn=5.1.1, status=bounced (host mail.domainname.tld
[private/dovecot-lmtp] said: 550 5.1.1
<|/var/lib/mailman/mail/mailman at hostname.domainname.tld > User doesn't
exist: |/var/lib/mailman/mail/mailman at hostname.domainname.tld  (in reply to
RCPT TO command))
Mar 19 18:21:43 zarathustra amavis[5001]: (05001-19-19) Passed CLEAN
{RelayedInternal,RelayedOutbound}, LOCAL [::1]:53426 [::1]
<ssan-bounces at lists.domainname.tld > -> <ces at domainname.tld
>,<ssan at hostname.domainname.tld
>,<|/var/lib/mailman/mail/mailman at hostname.domainname.tld >, Queue-ID:
C66FF101986, Message-ID:
<mailman.99.1553044787.18654.ssan at lists.domainname.tld >, mail_id:
UPdgfVyqHMQR, Hits: -3.899, size: 6324, queued_as: 925B210193B, 2396 ms
Mar 19 18:21:43 zarathustra postfix/lmtp[18151]: 925B210193B:
to=<ces at domainname.tld >, relay=mail.domainname.tld [private/dovecot-lmtp],
delay=0.04, delays=0.01/0/0/0.02, dsn=2.0.0, status=sent (250 2.0.0
<ces at domainname.tld > wqgTMDOVkVzrRgAAEFbm5A Saved)
Mar 19 18:21:43 zarathustra postfix/cleanup[18707]: 9B645101942:
message-id=<20190320012143.9B645101942 at mail.domainname.tld >
Mar 19 18:21:43 zarathustra postfix/qmgr[18094]: 9B645101942: from=<>,
size=9894, nrcpt=3 (queue active)
Mar 19 18:21:43 zarathustra postfix/bounce[18678]: 925B210193B: sender
non-delivery notification: 9B645101942
Mar 19 18:21:43 zarathustra postfix/qmgr[18094]: 925B210193B: removed
Mar 19 18:21:43 zarathustra postfix/smtp[18662]: C66FF101986:
to=<ces at domainname.tld >, orig_to=<ssan-owner at lists.domainname.tld >,
relay=127.0.0.1[127.0.0.1]:10024, conn_use=19, delay=113,
delays=0.01/110/0.01/2.4, dsn=2.0.0, status=sent (250 2.0.0 from
MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 925B210193B)
Mar 19 18:21:43 zarathustra postfix/smtp[18662]: C66FF101986:
to=<ssan at hostname.domainname.tld >, orig_to=<ssan-owner at lists.domainname.tld
>, relay=127.0.0.1[127.0.0.1]:10024, conn_use=19, delay=113,
delays=0.01/110/0.01/2.4, dsn=2.0.0, status=sent (250 2.0.0 from
MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 925B210193B)
Mar 19 18:21:43 zarathustra postfix/smtp[18662]: C66FF101986:
to=<|/var/lib/mailman/mail/mailman at hostname.domainname.tld >,
orig_to=<ssan-owner at lists.domainname.tld >,
relay=127.0.0.1[127.0.0.1]:10024, conn_use=19, delay=113,
delays=0.01/110/0.01/2.4, dsn=2.0.0, status=sent (250 2.0.0 from
MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 925B210193B)
Mar 19 18:21:43 zarathustra postfix/qmgr[18094]: C66FF101986: removed
Mar 19 18:21:43 zarathustra postfix/lmtp[18151]: 9B645101942:
to=<bounces at hostname.domainname.tld >,
orig_to=<ssan-bounces at lists.domainname.tld >, relay=mail.domainname.tld
[private/dovecot-lmtp], delay=0.02, delays=0/0/0/0.02, dsn=5.1.1,
status=bounced (host mail.domainname.tld [private/dovecot-lmtp] said: 550
5.1.1 <bounces at hostname.domainname.tld > User doesn't exist:
bounces at hostname.domainname.tld  (in reply to RCPT TO command))
Mar 19 18:21:43 zarathustra postfix/lmtp[18151]: 9B645101942:
to=<ssan at hostname.domainname.tld >,
orig_to=<ssan-bounces at lists.domainname.tld >, relay=mail.domainname.tld
[private/dovecot-lmtp], delay=0.03, delays=0/0/0/0.03, dsn=5.1.1,
status=bounced (host mail.domainname.tld [private/dovecot-lmtp] said: 550
5.1.1 <ssan at hostname.domainname.tld > User doesn't exist:
ssan at hostname.domainname.tld  (in reply to RCPT TO command))
Mar 19 18:21:43 zarathustra postfix/lmtp[18151]: 9B645101942:
to=<|/var/lib/mailman/mail/mailman at hostname.domainname.tld >,
orig_to=<ssan-bounces at lists.domainname.tld >, relay=mail.domainname.tld
[private/dovecot-lmtp], delay=0.04, delays=0/0/0/0.03, dsn=5.1.1,
status=bounced (host mail.domainname.tld [private/dovecot-lmtp] said: 550
5.1.1 <|/var/lib/mailman/mail/mailman at hostname.domainname.tld > User doesn't
exist: |/var/lib/mailman/mail/mailman at hostname.domainname.tld  (in reply to
RCPT TO command))
Mar 19 18:21:43 zarathustra postfix/qmgr[18094]: 9B645101942: removed

Please advise.

-----Original Message-----
From: Mailman-Users
[mailto:mailman-users-bounces+csa=web-analysts.net at python.org] On Behalf Of
Mark Sapiro
Sent: Tuesday, March 19, 2019 9:22 AM
To: mailman-users at python.org
Subject: Re: [Mailman-Users] iterative loop

On 3/18/19 5:19 PM, Web Analysts via Mailman-Users wrote:
> Using mailman 2.1.9 on ubuntu 14.04 using mysql for aliases and mail
> accounts. Iy was working fine for a long time then something went awry.
Now
> I've got an iterative loop and multiple email lists are generating
> 'Undelivered Mail Returned to Sender' messages. Those message then have
the
> following email as an attachment:
> 
> 
> This is the mail system at host mail.domainname.tld.
> 
> I'm sorry to have to inform you that your message could not be delivered
to
> one or more recipients. It's attached below.
> 
> For further assistance, please send mail to postmaster.
> 
> If you do so, please include this problem report. You can delete your own
> text from the attached returned message.
> 
>                    The mail system
> 
> <|/var/lib/mailman/mail/mailman@ hostname.domainname.tld >: unknown user:
>     "|/var/lib/mailman/mail/mailman"

It looks like the MTA is postfix and something is wrong with the aliases
for Mailman. There should be aliases for each list that look like

> LISTNAME:             "|/var/lib/mailman/mail/mailman post LISTNAME"
> LISTNAME-admin:       "|/var/lib/mailman/mail/mailman admin LISTNAME"
> LISTNAME-bounces:     "|/var/lib/mailman/mail/mailman bounces LISTNAME"
> LISTNAME-confirm:     "|/var/lib/mailman/mail/mailman confirm LISTNAME"
> LISTNAME-join:        "|/var/lib/mailman/mail/mailman join LISTNAME"
> LISTNAME-leave:       "|/var/lib/mailman/mail/mailman leave LISTNAME"
> LISTNAME-owner:       "|/var/lib/mailman/mail/mailman owner LISTNAME"
> LISTNAME-request:     "|/var/lib/mailman/mail/mailman request LISTNAME"
> LISTNAME-subscribe:   "|/var/lib/mailman/mail/mailman subscribe LISTNAME"
> LISTNAME-unsubscribe: "|/var/lib/mailman/mail/mailman unsubscribe
LISTNAME"

I'm only guessing here, but it looks like you have the correct aliases,
but somehow they are being processed by a Postfix delivery agent that
doesn't understand delivery via pipe to command.

What are your actual mail.log entries corresponding to these bounces?

This is really a Postfix issue (assuming the Mailman aliases are
correct), but to be of further help, we'd need to see the actual Postfix
mail.log entry for the bounce and the output of 'postconf -n' to start.

Note: you say multiple email lists. If that means some but not all, it
probably is an issue with the aliases themselves.

-- 
Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan
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