[Dovecot] Can't delete certain messages

[Karl Davenport]

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

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.

Here is my config:

# 1.0.10: /etc/dovecot/dovecot.conf
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: imap imaps pop3 pop3s
login_dir: /var/run/dovecot/login
login_executable(default): /usr/lib/dovecot/imap-login
login_executable(imap): /usr/lib/dovecot/imap-login
login_executable(pop3): /usr/lib/dovecot/pop3-login
login_greeting_capability(default): yes
login_greeting_capability(imap): yes
login_greeting_capability(pop3): no
mail_privileged_group: mail
mail_location: maildir:/home/%u/Maildir
mail_executable(default): /usr/lib/dovecot/imap
mail_executable(imap): /usr/lib/dovecot/imap
mail_executable(pop3): /usr/lib/dovecot/pop3
mail_plugin_dir(default): /usr/lib/dovecot/modules/imap
mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap
mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3
imap_client_workarounds(default): tb-extra-mailbox-sep
imap_client_workarounds(imap): tb-extra-mailbox-sep
imap_client_workarounds(pop3): outlook-idle
pop3_uidl_format(default):
pop3_uidl_format(imap):
pop3_uidl_format(pop3): %08Xu%08Xv
auth default:
   passdb:
     driver: pam
   userdb:
     driver: passwd
#End dovecot.conf

Thanks in advance.

-- 

Karl Davenport
WaveCom Communications
karl at wavecom-it.com
435-656-0972