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Bichon vs Mail-Archiver: catalog facts
Bichon	Mail-Archiver
Free Free and open source under the AGPL-3.0 licence.	Free Free and open source under the GPL-3.0 licence.
Web, Self-hosted	Web, Self-hosted
No external database required Unified full-text search across accounts	Supports IMAP, Microsoft 365 and personal Microsoft accounts Exports to mbox and zipped EML
Only archives mail; it cannot send or reply IMAP is the main source for downloading mail	Requires running a Docker setup Read-only API cannot modify the archive
Downloadable app, Self-hosted	Self-hosted
Open source	Open source
License: AGPL-3.0	License: GPL-3.0
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
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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