Compare software

SmarterMailb1gMail
Freemium

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

 Free

Free and open source under the GPL-2.0 licence.

Windows, Linux, Web, Self-hosted Web, Self-hosted
  • Native MAPI support for Outlook without plug-ins
  • Calendars, contacts, tasks, chat and meetings included
  • Runs on shared web hosting with PHP and MariaDB
  • Web admin panel for managing users and the service
  • Proprietary, closed-source software
  • Running a mail server requires ongoing administration
  • Shared-hosting mode relies on POP3 catch-all mailboxes
  • Community site and documentation are partly in transition from the old website
Downloadable app, Self-hosted Self-hosted
Closed source Open source
License not stated License: GPL-2.0
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.