Questions about hardlinks, alternate storage and compression

[Gionatan Danti]

On 14/07/15 08:17, Steffen Kaiser wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On Mon, 13 Jul 2015, Gionatan Danti wrote:
>
>> On the other hand, private (per-user) sieve file works without
>> interfering with hardlinks. In a similar manner, disabling sieve also
>> permits dovecot to create multiple hardlinks for a single message.
>>
>> Does someone know if newer dovecot versions change anything in this
>> regard?
>
> LMTP adds Delivered-To header, so all delivered messages are unique and
> you cannot hardlink messages regardless of Sieve.
>
> If Dovecot LDA adds headers, too, I do not know.
>

Mmm... I'm using LMTP, but I can't find the "Delivered-To" header.
Below you can see an example of successfully hard-linked email [1]

I am missing something?

[1]
Return-Path: <g.danti at assyoma.it>
Received: from mail.gruppocrimi.it
         by mail.gruppocrimi.it (Dovecot) with LMTP id 
VFA8Fj3OmlUStwAA6qgwnw
         ; Mon, 06 Jul 2015 20:51:41 +0200
Received: from localhost (localhost.localdomain [127.0.0.1])
         by mail.gruppocrimi.it (Postfix) with ESMTP id 22AB4A1A85;
         Mon,  6 Jul 2015 20:51:41 +0200 (CEST)
X-Virus-Scanned: amavisd-new at gruppocrimi.it
Received: from mail.gruppocrimi.it ([127.0.0.1])
         by localhost (mail.gruppocrimi.it [127.0.0.1]) (amavisd-new, 
port 10024)
         with LMTP id NC3YcizeDFPO; Mon,  6 Jul 2015 20:51:40 +0200 (CEST)
Received: from mr003msb.fastweb.it (mr003msb.fastweb.it [85.18.95.87])
         by mail.gruppocrimi.it (Postfix) with ESMTP id 4380DA1A7C;
         Mon,  6 Jul 2015 20:51:40 +0200 (CEST)
Received: from ceres.assyoma.it (93.63.55.57) by mr003msb.fastweb.it 
(8.5.140.03)
         id 55501C9F0432631D; Mon, 6 Jul 2015 20:51:40 +0200
Received: by ceres.assyoma.it (Postfix, from userid 48)
         id B7B912643B4; Mon,  6 Jul 2015 20:51:39 +0200 (CEST)
To: gionatan.danti at gruppocrimi.it, g.danti at gruppocrimi.it
Subject: test invio
X-PHP-Originating-Script: 0:rcube.php
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII;
  format=flowed
Content-Transfer-Encoding: 7bit
Date: Mon, 06 Jul 2015 20:51:39 +0200
From: Gionatan Danti <g.danti at assyoma.it>
Organization: Assyoma s.r.l.
Message-ID: <ef3149d82ef4350c1c9b6da9c1f03fae at assyoma.it>
X-Sender: g.danti at assyoma.it
User-Agent: Roundcube Webmail/1.0.5


-- 
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti at assyoma.it - info at assyoma.it
GPG public key ID: FF5F32A8