CKAN vs mail-archiver

Both are self-hosted archiving and digital preservation (dp) projects. This page compares how well each one is actually maintained — the part you cannot see from a feature list.

CKAN scores 81 against mail-archiver's 72, putting it slightly ahead on the strength of a higher commit volume. That measures project health, not feature fit — mail-archiver may still be the right choice if it does what you need.
CKANmail-archiver
Health score 81/100 72/100
Commits (11 mo) 857 333
Commits (last 3 mo) 269 236
Stars 5.1k 2.1k
Latest release 26 Aug 2026 22 Sept 2026
Licence AGPL-3.0 GPL-3.0
Built with Python Docker
Typical RAM 1 GB 1 GB

CKAN

Make open data websites.

81/100
Healthy

Actively maintained with regular releases.

Maintenance 31/40
Releases 25/25
Community 13/20
Momentum 12/15

Commit activity more than 77% of tracked projects; popularity more than 67%. How this is calculated.

Commits, last 11 months

2025-10: 61 commits 2025-11: 59 commits 2025-12: 43 commits 2026-01: 36 commits 2026-02: 83 commits 2026-03: 126 commits 2026-04: 100 commits 2026-05: 80 commits 2026-06: 58 commits 2026-07: 116 commits 2026-08: 95 commits

mail-archiver

Web application for archiving, searching, and exporting emails from multiple accounts (IMAP, M365 or Import). Featuring folder sync, attachment support, mailbox migration and a dashboard.

72/100
Healthy

Actively maintained with regular releases.

Maintenance 22/40
Releases 25/25
Community 10/20
Momentum 15/15

Commit activity more than 55% of tracked projects; popularity more than 50%. How this is calculated.

Commits, last 11 months

2025-10: 0 commits 2025-11: 0 commits 2025-12: 12 commits 2026-01: 22 commits 2026-02: 24 commits 2026-03: 16 commits 2026-04: 13 commits 2026-05: 10 commits 2026-06: 103 commits 2026-07: 81 commits 2026-08: 52 commits

How to read this

Everything above is measured, not opinion: commit counts and release dates come from the public repositories, and the health score ranks each project against all 1352 projects we track. Read the full method.

What this comparison deliberately does not do is tell you which has the better feature set. Maintenance health tells you which project will still be receiving security fixes in two years. Decide that first, then compare features on the projects that survive the filter.

See every option in this category: self-hosted archiving and digital preservation (dp).