Re: [mlmmj] Mailing Lists and DKIM signing breaking when sender DKIM policy is REJECT

Am 09.04.24 um 00:23 schrieb Kent:

> I note this mailing list:
> 
> 1) Modifies the 'Subject' by inserting [mlmmj] at the start - this
> will invalidate the original senders dkim.
> 
> 2) Sets the 'Sender:' header, however this didn't make any difference
> when I used 'Reply'  It wasn't until I clicked 'Reply All' that the
> list was added as a recipient (and the Cc recipient) and hence why I
> was originally setting the 'Reply-To:' header.

I'm not the maintainer of this ML. Seems that it's a long time ago since 
it was configured and so it 'naturally' filters out every Gmail account 
that bounces.

> What's the process to request a flag to make this option available ?
> 
> As much as I avoid Google myself, the enforcing by Google and Yahoo
> of SPF, DKIM and DMARC means you are needing to do what they do like
> it or not, and their own mailing lists are From-munging !

If you want to do From-munging then Mlmmj is the wrong software for you. 
Sympa can do that but that's another beast.

I configured my mailinglists so that the original DKIM signatures are 
kept (no prefix, no footer, no extra Reply-To) and wrote in 
'control/customheaders':

> Precedence: list 
> List-Id: User Mailing List <user.example.com> 
> List-Unsubscribe: <https://example.com/>, 
>  <mailto:[email protected]?subject=unsubscribe> 
> List-Post: <mailto:[email protected]> 
> List-Help: <mailto:[email protected]?subject=help> 
> List-Subscribe: <http://example.com/>, 
>  <mailto:[email protected]?subject=subscribe> 
> Sender: <[email protected]> 
> Mail-Followup-To: <[email protected]>

The 'Mail-Followup-To:'-header makes it possible that Gmail-Users can 
hit Reply-to-all to answer to the list.

And then I said to the users they should answer to the list or to all 
and filter their mail for 'To: [email protected]' and that works now.

Alles Gute

Christof Thalhofer

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