Re: notmuch-reply doesn't use Reply-To

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+Return-Path: <damien@bender.ldn-fai.net>\r
+X-Original-To: notmuch@notmuchmail.org\r
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+Received: from localhost (localhost [127.0.0.1])\r
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+ for <notmuch@notmuchmail.org>; Fri,  4 Dec 2015 08:40:49 -0800 (PST)\r
+From: Damien Cassou <damien@cassou.me>\r
+To: David Bremner <david@tethera.net>, notmuch@notmuchmail.org\r
+Subject: Re: notmuch-reply doesn't use Reply-To\r
+In-Reply-To: <8737vi8l7j.fsf@zancas.localnet>\r
+References: <8737vjcx9b.fsf@cassou.me> <8737vi8l7j.fsf@zancas.localnet>\r
+Date: Fri, 04 Dec 2015 17:40:42 +0100\r
+Message-ID: <87fuzi9ng5.fsf@cassou.me>\r
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+Content-Type: text/plain\r
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+X-List-Received-Date: Fri, 04 Dec 2015 16:40:54 -0000\r
+\r
+David Bremner <david@tethera.net> writes:\r
+\r
+> Damien Cassou <damien@cassou.me> writes:\r
+>\r
+>>                    "To" : "rmod@inria.fr",\r
+>>                    "Reply-To" : "rmod@inria.fr",\r
+>>                    "From" : "seaside@rmod.inria.fr",\r
+>>                    "Subject" : "[rmod] [Mm10s] 2015-11-30",\r
+>>                    "Date" : "Mon, 30 Nov 2015 07:00:01 +0100"\r
+>\r
+> A quick look at the code suggests this is falling victim to the\r
+> "reply-to munging" detection code, which considers a reply-to field\r
+> redudant if it duplicates one of the other fields. From the source\r
+>\r
+>     /* Some mailing lists munge the Reply-To header despite it being A Bad\r
+>      * Thing, see http://www.unicom.com/pw/reply-to-harmful.html\r
+>      *\r
+>      * The munging is easy to detect, because it results in a\r
+>      * redundant reply-to header, (with an address that already exists\r
+>      * in either To or Cc). So in this case, we ignore the Reply-To\r
+>      * field and use the From header. This ensures the original sender\r
+>      * will get the reply even if not subscribed to the list. Note\r
+>      * that the address in the Reply-To header will always appear in\r
+>      * the reply.\r
+>      */\r
+\r
+\r
+The last sentence seems to contradict my example:\r
+\r
+    Note that the address in the Reply-To header will always appear in\r
+    the reply.\r
+\r
+Here is the reply message, and it does not contain the address in Reply-To.\r
+\r
+    $ notmuch reply --reply-to=sender --format=json "id:565be5e1.X5p1I6XirRudvMa6%seaside@rmod.inria.fr" | json_pp\r
+    {\r
+       "reply-headers" : {\r
+          "References" : "<565be5e1.X5p1I6XirRudvMa6%seaside@rmod.inria.fr>",\r
+          "Subject" : "Re: [rmod] [Mm10s] 2015-11-30",\r
+          "To" : "seaside@rmod.inria.fr",\r
+          "From" : "Damien Cassou <damien.cassou@inria.fr>",\r
+          "In-reply-to" : "<565be5e1.X5p1I6XirRudvMa6%seaside@rmod.inria.fr>"\r
+\r
+-- \r
+Damien Cassou\r
+http://damiencassou.seasidehosting.st\r
+\r
+"Success is the ability to go from one failure to another without\r
+losing enthusiasm." --Winston Churchill\r