Zetafax

Spec sheet

Product

Zetafax is fax server software for businesses that distributes documents electronically.Read 3 Oct 2026 · equisys.com

Trial

The maker advertises a free 30-day business trial.Read 3 Oct 2026 · equisys.com

Integrations

The Outlook add-in supports coversheets, letterheads, delayed sending, previews, attachments, and addressing faxes using contact fax numbers.Read 3 Oct 2026 · equisys.com

Security

The Exchange Online Connector uses SSL encryption for faxes and delivery reports passing between Zetafax Server and Exchange Online; the page says enhanced Zetafax security features can meet HIPAA requirements.Read 3 Oct 2026 · equisys.com

Support

Equisys provides Zetafax support resources including user guides, documentation, software updates, and a knowledgebase.Read 3 Oct 2026 · equisys.com

Headquarters

London, United KingdomRead 28 Sep 2026 · equisys.com

Company

Equisys says it operates dedicated teams in the UK and USA and serves customers worldwide through distributors, partners, and ISVs.Read 3 Oct 2026 · equisys.com

Application integrations

The Zetafax Automation Toolkit lets developers interact directly with Zetafax Server; more complex configurations require an additional add-on license.Read 3 Oct 2026 · equisys.com

Archiving

Zetafax can archive sent and received faxes on disk with transmission histories for later retrieval.Read 3 Oct 2026 · equisys.com

Automation

The Automation Toolkit lets developers interact with the Zetafax Server without using the Zetafax Client; complex configurations require an additional add-on license.Read 3 Oct 2026 · equisys.com

Company history

Equisys was founded in 1987.Read 3 Oct 2026 · equisys.com

Deployment limit

A server operating system is required for more than 10 users, and a dedicated fax server is recommended for more than 25 users, multiple fax lines, or Email Gateway use.Read 3 Oct 2026 · equisys.com

Downloads

The version 17.5 server and client installer is password protected, and the download page says a starter system license and download credentials are required for a new system.Read 3 Oct 2026 · equisys.com

Editions

Business Edition is for 5 to 25 network users, Corporate Edition for 50 or more, and Enterprise Edition for over 100 users.Read 3 Oct 2026 · equisys.com

Editions and audience

Business Edition is for 5–25 network users, Corporate Edition for 50 or more, and Enterprise Edition supports over 100 users with no restriction on server or line counts.Read 3 Oct 2026 · equisys.com

Exchange Online

Its Exchange Online Connector lets users send and receive faxes through Outlook Desktop and Outlook Web App while keeping the Zetafax Server on premises.Read 3 Oct 2026 · equisys.com

Fax connectivity

The FoIP Connector lets the Zetafax Server communicate with compatible phone systems over a local network without directly connected phone lines.Read 3 Oct 2026 · equisys.com

Fax devices

Supported fax hardware includes Brooktrout and Dialogic boards and most Class 1, Class 2, Class 2.0, and Class 2.1 fax modems.Read 3 Oct 2026 · equisys.com

Fax workflow

Users can send and receive faxes through email clients such as Microsoft Outlook.Read 3 Oct 2026 · equisys.com

Free trial

The trial can be installed on a server computer in a live environment for 30 days; the trial page offers free telephone and email support.Read 3 Oct 2026 · equisys.com

Office and email support

The maker lists Microsoft 365 Apps and Office 2013 through 2021 integrations, Exchange Server 2013 through 2019, Exchange Online, and SMTP servers.Read 3 Oct 2026 · equisys.com

Office integration

Zetafax supports Microsoft 365 Apps and Office 2013, 2016, 2019, and 2021 desktop applications and Web Apps.Read 3 Oct 2026 · equisys.com

Scale limit

Enterprise Edition has no restrictions on the number of servers or fax lines and supports high-volume faxing across multiple locations.Read 3 Oct 2026 · equisys.com

Supported server platforms

The maker lists Windows Server 2012 through 2022 and Windows 10 and 11 for the Zetafax Server, with a server operating system required for more than 10 users.Read 3 Oct 2026 · equisys.com

Virtualization

The product can run on virtualized servers including VMware ESX and ESXi, vSphere Suite, and Microsoft Hyper-V.Read 3 Oct 2026 · equisys.com

Where Specifiction places it

• Fax Server Software#19 of 237.3