On Sat, Dec 28, 2019 at 09:41:48PM -0800, Rick Moen wrote:

>
> tl;dr: Mailman will now munge the From: address if and only if the
> sender's domain publishes a problematic DMARC policy, to substitute the
> mailing list's address for the sender's. On those mails, Mailman
> also appends a Reply-To: header pointing to the sender's real address.
> No other mails will be touched.

Can I hope that it won't append a Reply-To: header if there is already one?

-- hendrik