On Mon, May 5, 2014 15:22, Wietse Venema wrote:

> What program is being used to sign the mail?

opendkim

>
> For this program to sign mailman submissions, those submissions
> must follow a path that runs through that same program. What evidence
> do you have that mail is actually following that path?
>
>       Wietse
>

It is not happening and that is what I am trying get to happen.  The messages
are being distributed by Mailman but they are not being signed.  I now
understand from the information provided to me on this list that even if I get
this to happen and manage to have Mailman forwarded messages re-signed based
on the Sender header that the DKIM rejects will nonetheless continue as Yahoo
and AoL will only consider the From header for DKIM purposes.

And that is the expected and necessary behaviour I realize upon reflection.


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