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BichonMailSteward
Free

Free and open source under the AGPL-3.0 licence.

 Paid

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

Web, Self-hosted macOS
  • No external database required
  • Unified full-text search across accounts
  • Searchable long-term archive for Apple Mail and Gmail
  • Unlimited database size even in the Lite edition
  • Only archives mail; it cannot send or reply
  • IMAP is the main source for downloading mail
  • macOS only
  • Pro edition requires setting up a MySQL server
Downloadable app, Self-hosted Downloadable app
Open source Closed source
License: AGPL-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.