[Dovecot] Inbox re-initialized

[Joshua, C.S. Chen]

Hi folks,
I just replaced my mail server's UW-imap with dovecot yesterday. I use
the following folder setting

default_mail_env =
mbox:/asiaa/home/%u/:/asiaa/home/%u/mail/:INBOX=/var/mail/%u:INDEX=/asiaa/home/%u/mail/dovecot_indexes


This is a Scientific linux 4.2 with dovecot 0.99.11-2 .


Now today the server loading is highly reduced because of the pop3
session impact is low. But users have the following problems:

For outlook express users, when they come in the office, the first time
they launch outlook express, they found that the previous Inbox is
re-transmitted. So they got double the number of all past e-mails (they
setup OE setting to keep a copy on the server).


And some users also use pine. After the pine session, they get another
whole copy of the past e-mails (so some users got 3X or even 4X the past
e-mails).

Am I missing something for the dovecot.conf setting, here is the entire
configurations:
Thanks in advance

protocols = pop3 pop3s
imap_listen = [::]
pop3_listen = [::]
log_path = /var/log/dovecot
login_dir = /var/run/dovecot-login
login = imap
login = pop3
default_mail_env = mbox:/asiaa/home/%u/:/asiaa/home/%u/mail/:INBOX=/var/m
ail/%u:INDEX=/asiaa/home/%u/mail/dovecot_indexes
mbox_locks = fcntl
auth = default
auth_mechanisms = plain
auth_userdb = passwd
auth_passdb = pam
auth_user = root






Cheers
Joshua