1)   RelayFax Server 6.7.6
RelayFax is a powerful email-to-fax and fax-to-email fax server. RelayFax Pro automates the process of sending, receiving and managing your network fax traffic. By integrating into existing email systems, RelayFax provides full faxing capabillities.

 2)   OLfax 1.4.0
OLfax the Email-to-Fax Gateway for MS Outlook and AVM FRITZ! It is the perfect solution for companies which relay on communication via fax. Each user is able to receive incoming faxes via email and to respond to faxes via email.

 3)   Venta4Net 1.8
Network fax and voice messaging solution for sending and receiving faxes and voice messages from any networked computer via a modem (or modems) installed in the server computer. Single line and multi-line versions available.

 4)   ActFax 4.14
Powerful and feature rich fax server software system.

 5)   Joyfax Server 1.90.0181
Joyfax Server(Network Fax Server Software): Client/server-based application(Fax software) allows you directly to send fax from desktop or other business applications(OA, CRM, and ERP), and receive fax in any computer.