[Mailman-Users] {Disarmed} Re: Problem Bounce Processing Category

[Mark Sapiro]

Roberto Gherardi wrote:
>
>this is my log bounce :
>
<snip>
>Jan 29 10:17:22 2008 (29795) sending prova1 list probe to:
>m.lariccia-eds at libero.it (score 2.0 >= 2.0)


The probe is not bouncing, or more likely it is bouncing but postfix is
not delivering it back to Mailman,
>
>
>this is my log postfix:
<snip>
>Jan 29 10:17:23 PRILNL01 postfix/cleanup[770]: EEC9411F73F: message-id=<
>mailman.10.1201598242.29795.prova1 at nli.inail.it>
>Jan 29 10:17:23 PRILNL01 postfix/qmgr[27729]: EEC9411F73F: from=<
>prova1-bounces+2274385f755d822304e48e7ea880d630703e9a6b at nli.inail.it>,
>size=7833, nrcpt=1 (queue active)
>Jan 29 10:17:24 PRILNL01 postfix/smtp[771]: EEC9411F73F: to=<
>m.lariccia-eds at libero.it>, relay=10.243.255.112[10.243.255.112], delay=1,
>status=sent (250 2.6.0  <mailman.10.1201598242.29795.prova1 at nli.inail.it>
>Queued mail for delivery)


This is the send of the probe. Note that the envelope is from
prova1-bounces+2274385f755d822304e48e7ea880d630703e9a6b at nli.inail.it

The +2274385f755d822304e48e7ea880d630703e9a6b part is a token that
identifies this particular probe when it bounces.

There are a few possibilities:

1) The probe actually doesn't bounce. This is unlikely.

2) The probe bounces, but Postfix doesn't know that
prova1-bounces+2274385f755d822304e48e7ea880d630703e9a6b at nli.inail.it
should be delivered to prova1-bounces at nli.inail.it. Do you have

recipient_delimiter = +

in your Postfix main.cf (see postconf -n). You need this for this to
work.

Your Postfix log excerpt didn't go far enough to show the probe bounce
if any.

3) The probe bounces after a delay that is long enough (3 days or more
by default) that the probe token has expired.


If your Mailman version is 2.1.6 or later, you can set

VERP_PROBES = No

(or remove VERP_PROBES = Yes) in mm_cfg.py to turn off the probe
feature. If this is Mailman 2.1.5, VERP_PROBES cannot be turned off.

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