Re: "Reply" button sometimes works as "Reply to Author" on mailing list emails

On Montag, 24. Juli 2017 13:42:56 CEST solitone wrote:
> On Monday, 24 July 2017 12:43:00 CEST Ingo Klöcker wrote:
> > On this mailing list? Which one?
> 
> Yes, to me it happens with some messages on this list.
> 
> For example, with a message from Daniel Vratil. It's strange, because in his
> messages there is my email address in Cc. Here are the headers:
> 
> Return-Path: <[email protected]>
> Received: from kolab.progdan.cz ([83.167.228.39]) by mx.mail.com (mxgmxus001
> [74.208.5.22]) with ESMTP (Nemesis) id 0MhBZP-1dDR8r2CoL-00MIxN for
> <[email protected]>; Sun, 23 Jul 2017 11:32:24 +0200
> Received: by kolab.progdan.cz (Postfix, from userid 5006) id 5F64D421AB2;
> Sun, 23 Jul 2017 11:32:22 +0200 (CEST)
> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on Valhalla
> X-Spam-Level:
> X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED
> autolearn=unavailable autolearn_force=no version=3.4.0
> Received: from odin.localnet (cst-prg-38-3.cust.vodafone.cz [46.135.38.3])
> by kolab.progdan.cz (Postfix) with ESMTPSA id B9E66421A86; Sun, 23 Jul 2017
> 11:32:19 +0200 (CEST)
> From: Daniel Vrátil <[email protected]>
> To: [email protected]
> Cc: solitone <[email protected]>
> Subject: Re: Reducing .local/share/akonadi
> Date: Sun, 23 Jul 2017 11:32:14 +0200
> Message-ID: <1961015.Dcr3WMZSXV@odin>
> In-Reply-To: <2023504.zQJaT7sRYe@alan>
> References: <2023504.zQJaT7sRYe@alan>
> MIME-Version: 1.0
> Content-Type: multipart/signed; boundary="nextPart6351985.Ox7cYO0XYA";
> micalg="pgp-sha256"; protocol="application/pgp-signature"
> Envelope-To: <[email protected]>

That's easy to explain. The above header shows that this copy of the message 
did not go through the mailing list (because the usual List-* headers are 
missing), but was delivered directly to your inbox. Therefore KMail has no way 
to know that this message was (also) sent to a mailing list. Consequently, 
reply-to-list cannot work and normal reply replies to the sender's address.


Regards,
Ingo

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