• [1] Mail-Followup-To and Mail-Reply-To <http://cr.yp.to/proto/replyto.html>
• [2] 2002-12-29 15:22 名無しさん: See also [mew-dist 22724]

[3] [mew-dist 22724] Re: Mail-Followup-To: ( (6/18/2009, 1:00:43 AM 版)) <http://www.mew.org/pipermail/mew-dist/2002-December/022419.html>