Or use an IMAP server and leave mail on the server. I've switched to this system so that I can read my mail from home or office. Combine this with server-side filtering (eg. procmail) and some kind of server-based address book (eg. LDAP) and you become client-independent and OS-independent. (I'm finding Mulberry to be a very good IMAP client. Available for Linux, Win32, and Mac OSX.)But remember that if your employees check there mail via pop3 from home then they will not get the same emails at work. It would be better to install a webbased email system eg neomail or similar on the mail machine.
I still use qpopper for my users who only need to read mail in one place, though.
