[Users] Forwarded message listed under wrong email

[Ralf Mardorf]

Hi,

a forwarded messages gets its own "Message-ID", but the original
"In-Reply-To" and "References" headers get removed, so such a mail
doesn't belong to the original thread anymore, IOW since it opens a new
thread, that isn't related to any already existing thread, it can not
be shown within a thread.

Assumed the mail is shown by a thread, then because "Thread using
subject in addition to standard headers" is checked in Configuration >
Preferences... > Display > Summaries > Message list, IOW it quasi
sorted by subject.

Other MUAs usually allow to handle this in the same, resp. similar way.

Regards,
Ralf