Could anybody show me a way to block emails between users? I have a Win 2003 enterprise domain. It is not connected to the Internet. Currently there are four users excluding an administrator in the domain. POP3 and SMTP server is also enabled. The mailbox names in POP3/SMTP relate to the user's log...

From time to time all the POP3 user mailboxes get their password reset and users can't access their mail. I have to go in and manually reset each users password. Why is this happening and how can I stop it?! Thanks!