[Mailman-Users] dmarc_moderation_action not working in 2.1.18

glen martin glenm at locutory.org
Sat Jun 14 07:07:03 CEST 2014

The From was not being munged, it was showing up as

From: Jane User <user at yahoo.com>

However, I noticed some other problems so I rebooted the host just to 
make sure every change had fully taken hold .. and things are working 
now.  So it is strange, while I had previously restarted mailman, 
something was still not working right until a reboot. Maybe a problem in 
my init scripts.



On 06/13/2014 09:02 PM, Mark Sapiro wrote:
> On 06/13/2014 08:07 PM, glen martin wrote:
>> I'm having a similar problem, also using 2.1.18-1. Posts from a Yahoo
>> user are bouncing on redelivery to him.
>>     Jun 13 18:55:00 host postfix/smtp[15681]: 912BD520AB:
>>     to=<user at yahoo.com>, relay=mta5.am0.yahoodns.net[]:25,
>>     delay=1.2, delays=0.05/0/0.25/0.92, dsn=5.7.9, status=bounced (host
>>     mta5.am0.yahoodns.net[] said: 554 5.7.9 Message not
>>     accepted for policy reasons.  See
>>     http://postmaster.yahoo.com/errors/postmaster-28.html (in reply to
>>     end of DATA command))
> ...
>> General Options
>>     from_is_list is Munge From
>>     anonymous_list is No
>> Privacy Options --> Sender Filters
>>     dmarc_moderation_action is Munge From
>>     dmarc_quarantine_moderation_action is Yes
> with the above, your list should be munging the From: on all outgoing
> messages because from_is_list is Munge From. The dmarc_moderation_action
> of Munge From is redundant in this case. It would serve to munge the
>  From only on messages originally from domains with DMARC p=reject or
> quarantine if from_is_list were No.
> So the first question is what does the From: look like on messages from
> the list. Is it
> From: Jane User <user at yahoo.com>
> (which is not what it should be - something is wrong) or is it
> From: Jane User via LISTNAME list <listname at mailman.host>
> which is what it should be. If it is the latter, and your mailman.host
> does not publish a DMARC policy, then Yahoo is not rejecting the mail
> for DMARC, but for some other unknown to me reason, but Mailman is doing
> what it can.
> If the From: is not munged, then there is a Mailman issue we can
> investigate. So which is it?

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