On 8/3/20 11:49 PM, Odhiambo Washington wrote:
> Hi,
> 
> I am wondering at what level this can be changed.
> I have a server - lists.domain1.name. This is the primary hostname.
> I have a list - sas...@lists.domain2.name which I am hosting on this server.
> 
> Take for example in this obfuscated bounce below:
> 
> <cut>
> mail...@lists.domain2.name via lists.domain1.net   <=====================
> removing/changing this *via .....*


I don't think this header munging is done by Mailman. Mailman does this
only for DMARC mitigation which is not applied to notifications to the
list owner. I suspect this is just the way your MUA is rendering the
mail. If I am wrong and this is actually in the raw message as sent from
Mailman, I'd need to see more of it to understand what's doing it.


> 08:55 (31 minutes ago) to saseni-owner
> 
> This is a Mailman mailing list bounce action notice:
> 
>     List:       saseni
>     Member:     xxxx....@minbuza.nl
>     Action:     Subscription bounce score incremented.
>     Reason:     Excessive or fatal bounces.
> 
> 
> 
> The triggering bounce notice is attached below.
> 
> Questions? Contact the Mailman site administrator at
> mail...@lists.domain2.name
> 
> 
> 
> ---------- Forwarded message ----------
> From: Mail Delivery System <mailer-dae...@lists.domain1.name> <============
> changing this...
> To: saseni-bounces+xxxx.yyy=minbuza...@lists.domain2.name


That From: header is created by your MTA. Any changes would need to be
done to the MTA.


> Cc:
> Bcc:
> Date: Tue, 04 Aug 2020 08:38:44 +0300
> Subject: Mail delivery failed: returning message to sender
> This message was created automatically by mail delivery software.
> 
> A message that you sent could not be delivered to one or more of its
> recipients. This is a permanent error. The following address(es) failed:
> </cut>
> 
> Is there a way to completely change all occurrences of domain1.net with
> domain2.net whenever
> a bounce is generated from sas...@lists.domain2.name ??
> 
> Is there a way to specify the DEFAULT_EMAIL_HOST on a per list basis?

You don't mean DEFAULT_EMAIL_HOST. That is only used in creating the
host_name attribute for a newly created list or when fix_url is run. For
an existing list, you can change it on the list's General Options page

Host name this list prefers for email.
(Details for host_name) ...
        
Also see <https://wiki.list.org/x/4030592> and
<https://bazaar.launchpad.net/~mailman-coders/mailman/2.1/view/head:/Mailman/Defaults.py.in#L67>.

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