On mar, 2022-07-26 at 09:50 +0000, Stephan Krinetzki wrote:

And again: The Mail from the beginning https://pastebin.com/gsVtvKm1

I'm not sure if Mailman does the transformation of the subject to Quoted Printable, but, I think that whatever is doing that is the most likely culprit, as "it" has added the QP terminator (?=) where the subject line breaks:

Subject: =?utf-8?q?=5Bedv-support=5D=5BSAV- LINUX=5D_Notice_from_Sophos_Anti-Virus_on?=

-- Victoriano Giralt                           Innovation Director Digital Transformation Vicerectorate        University of Malaga +34952131415                                SPAIN

Note: signature.asc is the electronic signature of present message A: Yes.

Q: Are you sure ?

...

A: Because it reverses the logical flow of conversation.

...

Q: Why is top posting annoying in email ?