Re: [Mutt] #3090: Mutt removes In-Reply-To header field

[Mutt <fleas@xxxxxxxx>]

#3090: Mutt removes In-Reply-To header field

Comment (by pdmef):

 In another case reported by exg on #mutt the problem is not >1 @ signs but
 something other than exactly 1 including 0.

 IIRC In-Reply-To isn't supposed to contain only exactly some message-id
 but may also contain things like "message <message-id> sent by <user> on
 ...". That's why mutt needs a heuristic of exactly one @ symbol to locate
 the message-id. However, I don't know if clients really/still generate
 something like that and how common it is in mail archives.

 But I think I prefer a solution not touching that heuristic. A fix could
 be to avoid writing out In-Reply-To and use References instead which still
 gives the user the chance to manually adjust threads in the editor.

 So this could be the same issue as #1935.

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Ticket URL: <http://dev.mutt.org/trac/ticket/3090#comment:4>