Reply-To mailing list?

[Petite Abeille]

> On Dec 4, 2020, at 14:28, orbifx 🦊 <fox at orbitalfox.eu> wrote:
> 
> it will invalidate the mail signature

True. But this will happen anyway (e.g. attachment stripping or whatnot). remove_dkim_headers to the rescue? Sender Rewriting Scheme (SRS)?

> best solved by mail clients observing the List-* headers

True. Sadly, List-* headers support is, hmmm, uneven.


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