IceWarp Mail Server

IceWarp Mail Server
DeveloperIceWarp
Release1998 (as Merak Mail Server)
Stable release
14.3.0 / September 23, 2026 (2026-09-23)
Operating systemWindows, Linux
TypeMail Server, Groupware, Collaborative software
LicenseProprietary
Websitehttps://www.icewarp.com/

IceWarp Mail Server (formerly Merak Mail Server, currently marketed as IceWarp EPOS) is a business Email and Collaboration software developed by the Czech software company IceWarp. The product combines an email server with groupware and team collaboration components, including group chat, video conferencing, web-based document editing, and file storage. It can be deployed as a cloud service, installed on-premises on Windows or Linux, or run in hybrid configurations.

History

The product originated as Merak Mail Server, first released in 1998. It was initially built for Windows and later released for Linux, positioned as an alternative to Microsoft Exchange. It was subsequently renamed IceWarp Mail Server.

In 2009, after Software602 discontinued development of its Groupware Server 6, IceWarp took over its customer base, offering license holders migration to IceWarp Server.

Through the 2010s, the product expanded beyond email: a browser-based client, mobile applications for iOS and Android, and web-based document editing built on LibreOffice Online technology, to which IceWarp contributed as a sponsor and developer. The Documents component is now based on OnlyOffice technology.

The current product generation, EPOS, combined the email server, chat, conferencing, document, and file components into a single web-based environment.

Components

Optional integration with OpenAI's ChatGPT provides reply suggestions and summarization within email, chat, and document components.

Compatibility

The server interoperates with Microsoft Outlook (via ActiveSync and a dedicated OutlookSync component), directory services (LDAP, Active Directory), and standard protocols including WebDAV, CalDAV, and CardDAV. Migration tooling is provided for Microsoft Exchange, Microsoft 365 and Google Workspace environments. IceWarp solution is available to purchase on numerous Marketplaces such as Hostinger, Vultr, DigitalOcean and SoftwareOne.

See Also

References

  1. 1 2 Laurence Latif (May 1, 2013). "Microsoft Exchange rival Icewarp says selling Linux to Windows customers is easy". The Inquirer. Archived from the original on June 28, 2013.
  2. 1 2 Nelson King (May 31, 2006). "IceWarp Takes the Linux Mail Server Plunge". Linux planet. Archived from the original on February 2, 2017. Retrieved March 13, 2019.
  3. ↑ "IceWarp Blog". blog.icewarp.com. Retrieved 2026-09-23.
  4. ↑ Sedlák, Jan (2009-12-10). "Software602 ukončil vývoj Groupware Serveru, zákazníky přebírá IceWarp". Živě.cz (in Czech). Retrieved 2026-09-23.
  5. ↑ "LibreOffice's next big version is in the cloud". InfoWorld. Retrieved 2026-09-23.
  6. ↑ "IceWarp Announces Major Upgrade to User Workflows with Epos". EIN News. 2023-03-09. Retrieved 2026-09-23.
  7. ↑ Ballard, Barclay (2024-07-22). "IceWarp review". TechRadar. Retrieved 2026-09-23.
  8. ↑ "IceWarp Messaging Server". icewarp.com. Archived from the original on 2026-05-19. Retrieved 2026-09-23.
  9. ↑ "AI Integration". docs.icewarp.com. Retrieved 2026-09-23.
  10. ↑ "Synchronizing Users with LDAP / Active Directory". docs.icewarp.com. Retrieved 2026-09-23.
  11. ↑ "WebDAV". docs.icewarp.com. Retrieved 2026-09-23.
  12. ↑ "Migration". docs.icewarp.com. Retrieved 2026-09-23.