openSUSE admin

ping. It happened again.

Sun Apr  9 12:00:02 2017 mlmmj-maintd: redmine+admin@opensuse.org unsubscribed due to bouncing since  Mon Apr  3 17:51:04 2017

Since 01/01/2017, there was one single temporary bounce from mx2.suse.de, everything else was accepted. That means the mails are being bounced by the final recipient - redmine@opensuse.org.

Looking in the logs, I see a few:

2017-02-28T16:54:26.124854+00:00 baloo postfix/local[22265]: 1A07910E1A: to=, relay=local, delay=0.02, delays=0.01/0/0/0, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-03T02:58:31.611756+00:00 baloo postfix/local[9863]: 9134111246: to=, relay=local, delay=0.02, delays=0.01/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-03T12:51:37.711902+00:00 baloo postfix/local[27770]: AB20210E66: to=, relay=local, delay=0.01, delays=0.01/0/0/0, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-05T20:02:54.906430+00:00 baloo postfix/local[13598]: D7E0310F57: to=, relay=local, delay=0.02, delays=0.02/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-05T22:39:43.958168+00:00 baloo postfix/local[19774]: E70BF10E18: to=, relay=local, delay=0.01, delays=0.01/0/0/0, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-06T03:03:39.801783+00:00 baloo postfix/local[20218]: BD6A410F27: to=, relay=local, delay=0.03, delays=0.02/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-06T16:39:39.448027+00:00 baloo postfix/local[30334]: 6957A10E1B: to=, relay=local, delay=0.02, delays=0.01/0/0/0, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-07T20:39:28.973122+00:00 baloo postfix/local[12794]: E8F3310E19: to=, relay=local, delay=0.02, delays=0.01/0/0/0, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-08T02:33:49.306317+00:00 baloo postfix/local[2878]: 4727710E19: to=, relay=local, delay=0.02, delays=0.01/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-09T15:44:51.820447+00:00 baloo postfix/local[25037]: C29EA11AA3: to=, relay=local, delay=0.03, delays=0.02/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-10T04:59:10.288101+00:00 baloo postfix/local[2135]: 415D810E1F: to=, relay=local, delay=0.02, delays=0.02/0/0/0, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-13T04:01:11.894666+00:00 baloo postfix/local[18043]: D601210EAB: to=, relay=local, delay=0.02, delays=0.01/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-25T01:21:14.711084+00:00 baloo postfix/local[15564]: A78A210FBF: to=, relay=local, delay=0.03, delays=0.02/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-29T11:52:12.979030+00:00 baloo postfix/local[5784]: EC12A11658: to=, relay=local, delay=0.01, delays=0.01/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-03-29T13:56:03.277489+00:00 baloo postfix/local[8288]: 3DF8911AAF: to=, relay=local, delay=0.02, delays=0.02/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-04-03T17:51:04.473057+00:00 baloo postfix/local[16801]: 6EA7310E5B: to=, relay=local, delay=0.02, delays=0.01/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-04-05T12:18:23.788340+00:00 baloo postfix/local[23532]: BC2C910EBD: to=, relay=local, delay=0.02, delays=0.01/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)
2017-04-07T12:00:47.939992+00:00 baloo postfix/local[29669]: DF96B10F1D: to=, relay=local, delay=0.03, delays=0.02/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/mlmmj-recieve -L /var/spool/mlmmj/admin/)

I can certainly adjust bouncelife (default 5 days), but why is redmin@opensuse.org bouncing the messages?

Btw, when a message bounces, mlmmj will send one or more probes to the address, which redmine also bounces.

pjessen wrote:

Unsubscribed again, I have resubscribed. I can't see why the messages are being bounced, but something is clearly wrong @ redmine.

bouncelife was set to a really big value to prevent that. needs to be monitored more. and redmine is rejecting mails for blocked users. which then leads to bounces. we would need to be able to make our MX aware of blocked email addresses in redmine so it can reject them there already. but this isnt an easy task.

darix wrote:

pjessen wrote:

Unsubscribed again, I have resubscribed. I can't see why the messages are being bounced, but something is clearly wrong @ redmine.

bouncelife was set to a really big value to prevent that. needs to be monitored more.
and redmine is rejecting mails for blocked users. which then leads to bounces.

This is new behaviour?

we would need to be able to make our MX aware of blocked email addresses in redmine so it can reject them there already.
but this isnt an easy task.

Yeah, I agree that isn't easy. Maybe redmine could just ignore blocked users?

pjessen wrote:

darix wrote:

pjessen wrote:

Unsubscribed again, I have resubscribed. I can't see why the messages are being bounced, but something is clearly wrong @ redmine.

bouncelife was set to a really big value to prevent that. needs to be monitored more.
and redmine is rejecting mails for blocked users. which then leads to bounces.

This is new behaviour?

It is a tunable. see http://mlmmj.org/docs/tunables/ .

we would need to be able to make our MX aware of blocked email addresses in redmine so it can reject them there already.
but this isnt an easy task.

Yeah, I agree that isn't easy. Maybe redmine could just ignore blocked users?

maybe

darix wrote:

pjessen wrote:

darix wrote:

pjessen wrote:

Unsubscribed again, I have resubscribed. I can't see why the messages are being bounced, but something is clearly wrong @ redmine.

bouncelife was set to a really big value to prevent that. needs to be monitored more.
and redmine is rejecting mails for blocked users. which then leads to bounces.

This is new behaviour?

It is a tunable. see http://mlmmj.org/docs/tunables/ .

Haha, I meant new behaviour from redmine. The first such bounce was mid-March.

Btw, I suspect the problem is that redmine also bounces the mlmmj probes. Every unsubscribe is preceded by a number of probes, which are also being bounced. (see comment#5). I wonder if your new bouncelife might only cause a steady flow of bounces back and forth :-)

no it has been doing that since we set it up. you just didnt see them before i guess.

Judging by the logs something changed on or around 8 March 2017. Prior to that, redmine did not bounce the mlmmj probes, which is why there were no unsubscribes. After that, redmine starting bouncing the probes, hence unsubscribe. Adjusting bouncelife has hidden the symptom, but not fixed the cause.

which address sends the bounce probes? ... maybe someone blocked the bounce probe user?

The sender is: admin+bounces-probe-redmine+admin=opensuse.org@opensuse.org