[Dovecot] litte problems upgrade from 1.0.x to 1.1.1

Andreas Ntaflos daff at dword.org
Fri Jul 4 14:06:33 EEST 2008


On Wednesday 02 July 2008 08:52:41 Andre Hübner wrote:
> Sometime it happens that 1 user out of x (more than 100) got this
> standardmessage  for ~1 or ~2 thousend times in his mailbox (mbox)
>
> for example:
> >From MAILER_DAEMON  Mon Sep 18 16:16:14 2006
>
> Date: Mon, 18 Sep 2006 16:16:14 +0200
> From: Mail System Internal Data <MAILER-DAEMON at myhostname>
> Subject: DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA
> Message-ID: 1158588974 at myhostname
> X-IMAP: 1158588973 0000001177
> Status: RO
>
> This text is part of the internal format of your mail folder, and is not
> a real message.  It is created automatically by the mail system software.
> If deleted, important folder data will be lost, and it will be re-created
> with the data reset to initial values.

I've seen messages such as these when using (older versions of) Horde IMP on a 
Cyrus server in conjunction with Thunderbird and POP3. Not sure how exactly 
they are created, but I think it had to do with logging in via the IMP web 
interface, then using Thunderbird, and after that logging in via web 
interface again.

Dovecot does not use mail messages to store folder meta-data as far as I know 
so I highly doubt this message was created by Dovecot (does Dovecot even send 
out messages except when going over quota?). Also notice the date of 
2006-09-18, which is almost two years in the past. The message was probably 
created by some client and was somehow (willingly) ignored or flagged as 
deleted. Could be that upgrading Dovecot to 1.1 made the message visible 
again for whatever reason. 

Anyway, this is most certainly not a Dovecot-internal message.

Andreas
-- 
Andreas Ntaflos 
Vienna, Austria 

GPG Fingerprint: 6234 2E8E 5C81 C6CB E5EC  7E65 397C E2A8 090C A9B4
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