[Mailman-Developers] Fixing DMARC problems with .invalid munge

[Andreas Schulze]

Bob Puff:
> So guys... Is there a simple little hack we can do within MM 2.1 to try to
> mitigate this issue, by adding .invalid or some other extension?  I've got a
> few lists that are getting to the point where MM sends the probe email, and
> then figures it is not a bouncing address, but a lot of emails are not being
> delivered.


Bob,

you may also reconfigure your lists:
$subject_prefix = ''
$msg_footer = ''

mostly no message modifications -> dkim sigs stay valid -> dmarc pass.

Andreas