On Tue, Aug 30, 2016 at 12:08:30PM +0200, Gabriel Philippe wrote: > I don't know if this is relevant: the list is not a real list with > appropriate headers, and most of the people use poorly-designed MUA > (no Mail-Followup-To, etc.).
To be fair, Mail-Followup-To was never turned into a standard. You could make a (convincing) argument that Mutt is incorrect for continuing to use it, vs. that other MUAs are wrong for not using / following it. It's a draft from 1997 that expired in 1998, and I don't think was ever ratified as standards-track or as a standard. w
