[Dovecot] Problem copying e-mails to IMAP - Dovecot 2.1.2

[e-frog]

On 16.03.2012 16:05, wrote Timo Sirainen:
> On Fri, 2012-03-16 at 17:00 +0300, Odhiambo Washington wrote:
>>>> Mar 16 13:33:23 jaribu dovecot: imap(wash at kictanet.or.ke): Error:
>>> Corrupted
>>>> dbox file /var/spool/virtual/kictanet.or.ke/wash/mdbox/storage/m.4(around
>>>> offset=894): msg header has bad magic value
>>>

This is kind of the same error message I'm getting with doveadm backup.
I can reproduce this at will. Not sure however if this is related.

http://www.dovecot.org/list/dovecot/2012-March/064462.html


>> Ok. I have been able to reproduce it anyway.
>
> It looks like mdbox is completely broken in your setup. Don't try to use
> it until this is solved, or you'll probably end up losing mails.
>
> Could you try if you can easily reproduce this using imaptest?
> http://imapwiki.org/ImapTest
>
> Simply run it for an empty test account as:
>
> imaptest host=localhost user=testuser pass=testpass
>
> Maybe I should set up a FreeBSD VM to try this myself. Or if anyone else
> can report that they can reproduce this problem that would be helpful..
>