[Dovecot] Can't delete certain messages

[Timo Sirainen]

On Wed, 2010-09-22 at 10:24 -0600, Karl Davenport wrote:

> Running Dovecot version 1.0.10 on Ubuntu Server 8.04 amd64 (ext3).

That's a bit old version. If it's a Dovecot bug, it's probably fixed in
a newer version already.

> Some users have emails that will not go away.  They delete them and the 
> message is moved to the trash folder only to reappear when the mailbox 
> is refreshed.  Moving the message manually to another folder has the 
> same effect.  We are running Thunderbird as our email client, though I 
> have tried using other clients to remove the messages.

Do you use mbox format? Do you have any error messages in logs
(http://wiki.dovecot.org/Logging)?