Zetafax 

Zetafax is a powerful software package which runs on a PC network (LAN). It allows users on the network to receive faxes on screen and send faxes straight from their PCs. Windows 9X/NT/2000/XP/2003 server compatible
fax fax server fax software fax server software faxing

1PopCheck 

Retrieves emails from any standard POP3 server. Allows viewing, deleting and defining rules on emails along with many other administrative features. Emails from various accounts can be checked in a single window. Costs $9.99.
1popcheck email email retrieval pop3 email utility email server email standards mime 1.0 software attachments decoding attachments uuencoded base64 standard web mail

netMailshar 

netMailshar is an easy-to-use, powerful mail server that enables every computer in an office to send and receive email not only across the Internet but also within a LAN. It provides centralized, generic protection against all email viruses.
mail server multiple emailboxes intranet mailing lan messaging multiple accounts smtp pop3 email monitoring email archiving email filter mtx protection anti-virus kak