Zen Software LinkedIn Zen Software GooglePlus Zen Software Blog Zen Software YouTube

Try RelayFax

Download Free 30-Day-Trial Install the free fully functional 30-day trial version of RelayFax in just a few minutes on any Windows PC.

Download Free 30-Day-Trial

Any questions?

Call us on 0161 660 5738 or send us an email.


RelayFax starts around £150.00 ex. VAT.

Full price list

School or charity?

20% discount from RRP available for schools and charities!

Contact us for more info


Key features

SSL and TLS Support

  • Communication with the mail server can be encrypted using SSL (Secure Sockets Layer) or TLS (Transport Layer Security).

Powerful and Versatile Fax Engine

  • RelayFax is equipped with a fax engine that supports many fax modems and Error Correcting Mode (ECM).
  • Its redesigned Modem Configuration interface provides options for controlling COM port baud rate, flow control, fax baud rate, speaker activation, volume, and more.


  • Supports TWAIN devices such as scanners and digital cameras. This allows faxing of scanned images and digital photos.

Supports ISDN Devices

  • RelayFax supports CAPI 2.0 (ISDN) devices, and has been tested with both single and dual channel ISDN cards.

DID Routing support

  • With support for DID routing, you can associate DID fax numbers with specific users, and configure RelayFax to automatically route faxes to them based on the DID information received.
  • Inbound routing rules allows you to define actions based on DID information received.
  • RelayFax can be configured to accept calls only when they are directed to valid DID numbers-incoming calls to any other numbers will be ignored.
  • These features require DID capable hardware.

Compatible with a wide range of fax boards

  • RelayFax now supports faxing via many Mainpine, Brooktrout, Gammalink, Eicon, Dialogic, and NMS fax boards.

Receive and route faxes based on distinctive ring

  • Through support for distinctive RING code recognition, you can designate which fax device you want to answer incoming calls.
  • For each modem you can specify RING1, RING2, and/or RING3.

Fast and flexible fax database

  • Information about incoming and outgoing faxes is stored using XML, which is efficient and fast.

Optical Character Recognition (OCR)

  • RelayFax includes optical character recognition, which provides the ability to read and distribute incoming faxes automatically, based on content.
  • OCR makes it possible for you to convert incoming faxes to editable document formats such as DOC, PDF, and HTML.

Automatic modem detection

  • RelayFax automatically detects any number of modems that you have installed on the server.
  • You can also add and configure modems manually.

Terminal Services Support

  • RelayFax can run in a Terminal Services environment.
  • The administration interface, SMTP client, and printer drivers all support operating under Terminal Services.

Fax scheduling

  • You can set RelayFax to send faxes to certain locations at specific times in order to reduce long distance charges.
  • RelayFax can be scheduled to collect faxed email at times when more bandwidth is available.

Convert incoming faxes to PDF or PNG documents

  • In addition to many formats such as JPEG, GIF, Doc, and so on, RelayFax can send incoming faxes to their recipients in PDF and PNG formats.

Scan documents for fax commands

  • Documents can be scanned via OCR for specific fax parameters such as fax numbers, recipient names, company names, and more. You can designate specific identifying text to search for (for example, "FAXTO:" for a fax number) and then RelayFax will look for the appropriate text strings immediately following those identifiers. A text file can also be referenced for inclusion in the comments field of the cover page.

Automatic incoming fax routing

  • RelayFax can route incoming faxes directly to you.
  • When RelayFax receives an incoming fax it will use optical character recognition (OCR) and various other rules-based methods to determine the intended recipients and then route the fax accordingly, attached to an email message.

Log all faxing activities

  • RelayFax has extensive logging capabilities. Log files can be rotated daily or weekly, and each service can be logged into a separate file. A special debug log is also available.

Smart fax handling

  • RelayFax provides the option to apply rules to incoming and outgoing faxes.
  • Specify who is eligible to receive faxes and which mailbox to use.
  • Ignore faxes from unknown senders.
  • Fax a message without knowing the fax number.

Fax from your desktop

  • At scheduled times RelayFax connects to designated email servers, collects specified messages, and faxes them to specified fax numbers.
  • By sending a message to a designated email address, or by using the included Fax Client, you can send outgoing faxes directly from your workstation.


  • Included printer driver makes it possible to send faxes by printing directly to RelayFax from any application.

Easily edit cover pages

  • You can edit *.COV cover pages under Windows 2000/XP using the Microsoft Cover Page Editor included with Windows 2000/XP. The older Windows 9x style cover page format (*.CPE) is also supported.

Multiple language support

  • The Fax Client is available in twelve languages.

Integrated SMTP Fax Client

  • Included with RelayFax is a fax client that uses the Simple Mail Transfer Protocol (SMTP) to transfer messages to RelayFax via email.
  • Installed on each user's workstation, the Fax Client has an intuitive user interface that simplifies the process of faxing from the desktop.
  • Documents in DOC, XLS, and other formats can be faxed as email attachments-the client will transfer the documents via email to RelayFax, which will then fax them to their destination.


  • Users can send a single fax to an entire list of recipients, rather than faxing each person individually.

Fax priority system

  • Users can assign a priority to each outgoing fax. If several faxes are waiting to be sent, higher priority documents will be faxed first.

Address book sharing

  • RelayFax provides a network-wide fax address book so users can share contacts and save time when faxing to commonly used numbers.

Automatic client updates

  • When RelayFax has been updated, the server will automatically notify the user and provide instructions on how to update their Fax Client.

Try RelayFax

Download RelayFax 30-Day-Trial Why not install the free fully functional 30-day trial version of RelayFax and give it a try!

Download Now - Free 30-Day-Trial
Existing RelayFax user?