Compare software

Mail-ArchiverMailSteward
Free

Free and open source under the GPL-3.0 licence.

 Paid

Lite costs $24.95, MailSteward $49.95 and Pro $99.95, with a trial version available.

Web, Self-hosted macOS
  • Supports IMAP, Microsoft 365 and personal Microsoft accounts
  • Exports to mbox and zipped EML
  • Searchable long-term archive for Apple Mail and Gmail
  • Unlimited database size even in the Lite edition
  • Requires running a Docker setup
  • Read-only API cannot modify the archive
  • macOS only
  • Pro edition requires setting up a MySQL server
Self-hosted Downloadable app
Open source Closed source
License: GPL-3.0 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 2, 2026

Checked October 2, 2026

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