Compare software

SmarterMailMDaemon Email Server
Freemium

Can be downloaded for free, with paid licences available to buy.

 Paid

Commercial licence with renewals; a free 30-day trial is available.

Windows, Linux, Web, Self-hosted Windows, Self-hosted
  • Native MAPI support for Outlook without plug-ins
  • Calendars, contacts, tasks, chat and meetings included
  • Self-hosted alternative to Exchange and Microsoft 365
  • Webmail, groupware and anti-spam in one package
  • Proprietary, closed-source software
  • Running a mail server requires ongoing administration
  • Runs on Windows only
  • Paid licence with renewal fees
Downloadable app, Self-hosted Downloadable app, Self-hosted
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.