Lindsay Haisley writes:
On Tue, 2012-08-21 at 20:07 -0400, Sam Varshavchik wrote: > > OK, a little work with tcpdump and swaks clarified how things actually > > work. The designated SMTP server for the MUA engages in _two_ SMTP > > dialogs, one with them MUA and one with the recipient mail server. > > I'm quite skeptical that this is the case. There's no reason for the MUA to > contact different mail servers.You misread me, Sam. I said that the designated SERVER (not the MUA!) engages in 2 dialogs, one with the MUA and one with the recipient's mail server. I could probably have stated this more concisely.
I received two identical copies of your reply. The headers from the first copy:
Received: from shakti.fmp.com (shakti.fmp.com [::ffff:208.81.244.105]) (TLS:
TLS1.0,256bits,RSA_CAMELLIA_256_CBC_SHA1) by www.courier-mta.com with
ESMTPS; Tue, 21 Aug 2012 21:17:22 -0400 id
00000000000607E8.0000000050343323.00007C7F
Received: from [192.168.1.21] ([::ffff:10.8.0.4]) by shakti.fmp.com with esmtp;
Tue, 21 Aug 2012 20:17:19 -0500 id
00000000002756F5.000000005034331F.000037EA
Message-ID: <1345598239.2722.2.ca...@pudina.fmp.com>
Subject: Re: [courier-users] Courieresmtp and 450 errors
From: Lindsay Haisley <fmo...@fmp.com>
Reply-To: fmo...@fmp.com
To: Sam Varshavchik <mr...@courier-mta.com>
Cc: courier-users@lists.sourceforge.net
Date: Tue, 21 Aug 2012 20:17:19 -0500
In-Reply-To: <cone.1345594032.661938.9051.1...@monster.email-scan.com>
And here's the second copy:
Received: from shakti.fmp.com (shakti.fmp.com [::ffff:208.81.244.105]) (TLS:
TLS1.0,256bits,RSA_CAMELLIA_256_CBC_SHA1) by www.courier-mta.com with
ESMTPS; Tue, 21 Aug 2012 21:20:30 -0400 id
00000000000607E8.00000000503433DF.00007C9B
Received: from [192.168.1.21] ([::ffff:10.8.0.4]) by shakti.fmp.com with esmtp;
Tue, 21 Aug 2012 20:20:28 -0500 id 00000000002756F5.00000000503433DC.
00003928
Message-ID: <1345598428.2722.5.ca...@pudina.fmp.com>
Subject: Re: [courier-users] Courieresmtp and 450 errors
From: Lindsay Haisley <fmouse-cour...@fmp.com>
Reply-To: fmouse-cour...@fmp.com
To: Sam Varshavchik <mr...@courier-mta.com>
Cc: courier-users@lists.sourceforge.net
Date: Tue, 21 Aug 2012 20:20:28 -0500
In-Reply-To: <cone.1345594032.661938.9051.1...@monster.email-scan.com>
Two messages, with the Date: header about three minutes apart. Different
Message-ID: headers.
If you didn't accidentally, manually, sent two copies, looks like your MUA is doing that behind your back, occasionally.
pgp4KNAwX5GEu.pgp
Description: PGP signature
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