GNU bug report logs - #15195
24.3.50; message-make-in-reply-to out of compliance with RFC2822

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From: Aaron Ecay <aaronecay <at> gmail.com>
To: 15195 <at> debbugs.gnu.org
Subject: bug#15195: 24.3.50; message-make-in-reply-to out of compliance with RFC2822
Date: Mon, 26 Aug 2013 17:47:01 -0400

The `message-make-in-reply-to' function generates In-Reply-To headers
of the form:
"<msg <at> id> (John Smith's message of DATE)"

However, RFC2822 (pp. 22-23) states that the In-Reply-To field should
contain only 1 msg-id token (possibly more than one in some cases), but
not any other material.

The following implementation of the function inserts just the parent
message’s ID, in compliance with the RFC:
,----
| (defun message-make-in-reply-to ()
|   "Return the In-Reply-To header for this message."
|   (when message-reply-headers
|     (mail-header-id message-reply-headers)))
`----

-- 
Aaron Ecay

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