Self-hosted email archiving platform for ingesting, storing, indexing and searching emails from Gmail, Microsoft 365, IMAP, PST and more.

2.3k stars134 forksAGPL-3.0last commit Actively maintained
Cloud email archiving service that captures, retains, indexes, searches, and exports email from Microsoft 365, Exchange, and journaling sources to support eDiscovery, compliance, retention policies, and records management.
Self-hosted email archiving platform for ingesting, storing, indexing and searching emails from Gmail, Microsoft 365, IMAP, PST and more.

2.3k stars134 forksAGPL-3.0last commit Actively maintained
Self-hosted email archiving system for syncing IMAP and Microsoft 365 mailboxes, indexing content and attachments, and exporting or restoring mailboxes with auditing and retention.
2.1k stars82 forksGPL-3.0last commit Actively maintained
Self-hosted email archiving server that syncs from IMAP, stores a local compressed archive, and provides fast full-text search via Web UI and REST API.
1.9k stars79 forksAGPL-3.0last commit Actively maintained
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 3 of 3 shipped a commit in the last six months. Licences in this list: AGPL-3.0, GPL-3.0. In exchange you take on hosting, backups and updates yourself.
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