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Comparison · Comms
mailcow vs Misskey
A side-by-side editorial comparison of mailcow and Misskey — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:self-hosted
mailcow vs Misskey: at a glance
What is mailcow?
mailcow's monthly releases are mostly upstream security updates with small UI work
mailcow ships named monthly releases with lettered revisions, and most exist to pull in upstream security fixes for components like SOGo, Nginx, Redis, Unbound and Rspamd. The September release also added an ACL and global switch to stop external alias forwarding, a show-password toggle on login pages, and fixes such as an auth-cache wipe during nginx outages. October moved PHP to an Alpine 3.24 base and brought SOGo 5.12.12, Nginx 1.30.6 and a UI update.
What is Misskey?
Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
Misskey, the ActivityPub social server, shipped 2026.10.0 with a security fix and an HTTP Signatures fix, then 2026.10.1, which moves to Sentry SDK v11 and replaces sendDefaultPii with a dataCollection setting. The 2026.10.2 alpha improves how quote posts from Mastodon and other software display and makes the server stop safely on a bad job-queue config.
mailcow vs Misskey: editorial side-by-side
mailcow
5.0COMMS
mailcow's monthly releases are mostly upstream security updates with small UI work
◆ Current state
mailcow ships named monthly releases with lettered revisions, and most exist to pull in upstream security fixes for components like SOGo, Nginx, Redis, Unbound and Rspamd. The September release also added an ACL and global switch to stop external alias forwarding, a show-password toggle on login pages, and fixes such as an auth-cache wipe during nginx outages. October moved PHP to an Alpine 3.24 base and brought SOGo 5.12.12, Nginx 1.30.6 and a UI update.
◆ Where it's heading
Keeping a dozen bundled upstreams current is the product, and the cadence is built around that. Feature work arrives in small admin and web UI controls alongside the security updates.
◆ Prediction
Expect a revision of the October release carrying further upstream updates, following the lettered-revision pattern.
Misskey
5.0COMMS
Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
◆ Current state
Misskey, the ActivityPub social server, shipped 2026.10.0 with a security fix and an HTTP Signatures fix, then 2026.10.1, which moves to Sentry SDK v11 and replaces sendDefaultPii with a dataCollection setting. The 2026.10.2 alpha improves how quote posts from Mastodon and other software display and makes the server stop safely on a bad job-queue config.
◆ Where it's heading
Each version goes through alpha and beta tags before stable, and security fixes appear in most stable releases since 2026.9.0. Federation polish, such as how other servers' quotes and signatures are handled, is the main user-facing thread.
◆ Prediction
Expect 2026.10.2 stable soon after its alpha, carrying the quote display and deck fixes, with 2026.11 alphas following on the monthly cadence.
Alternatives to mailcow and Misskey
Other Comms products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either mailcow or Misskey.
Apprise
Apprise 2 is out: notify() returns a result object, and 2.1 takes the catalog to 170 services.
RSS.com
RSS.com's changelog is back after ten months, with listener voicemail for podcasts.
The Lounge
The Lounge ships steadily but publishes release notes that say nothing.
Mailu
Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures
Slack
Slack lets companies manage Slackbot skills from code and CI, not only by hand
See all mailcow alternatives → · See all Misskey alternatives →
Recent activity from mailcow and Misskey
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoMisskey2026.10.2 alpha improves quotes from Mastodon
- 9d agoMisskeyMisskey 2026.10.1 changes requirements and Sentry config
- 11d agomailcow🎃🐮 Mooctober 2026 | Security Update: PHP 8.2.35, SOGo 5.12.12 & Nginx 1.30.6
- 13d agoMisskeyMisskey 2026.10.1 alpha.1 pre-release
- 20d agoMisskeyMisskey 2026.10.1 alpha.0 moves to Sentry SDK v11
- 27d agomailcow2026-09a: Rspamd 4.2.1 and postfix-tlspol bumps
- 1mo agoMisskeyMisskey 2026.10.0: security and HTTP Signatures fixes
- 1mo agoMisskey2026.9.2 alpha fixes HTTP Signatures query strings
- 1mo agomailcow🍂🐮 Mootember 2026 | Unbound 1.26.1, SOGo 5.12.11 & Redis 7.4.11
- 2mo agomailcow🏖️🐮 Mooly 2026 | Postfix 3.10.12, Rspamd 4.1.0 & Nginx 1.30.3 - Revision B
- 3mo agomailcow🏖️🐮 Mooly 2026 | Postfix 3.10.12, Rspamd 4.1.0 & Nginx 1.30.3 - Revision A
- 3mo agomailcow🏖️🐮 Mooly 2026 | Postfix 3.10.12, Rspamd 4.1.0 & Nginx 1.30.3
Frequently asked questions
What is the difference between mailcow and Misskey?
Both compete on the same themes — self-hosted — within Comms. mailcow and Misskey are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is mailcow better than Misskey?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. mailcow and Misskey are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.
What are the best alternatives to mailcow?
Top mailcow alternatives in Comms are ranked by recent ship velocity. Browse the "mailcow alternatives" section above for the current picks, or visit /alternatives/mailcow for the full list with editorial commentary on each.
What are the best alternatives to Misskey?
Top Misskey alternatives in Comms are ranked by recent ship velocity. Browse the "Misskey alternatives" section above for the current picks, or visit /alternatives/misskey for the full list with editorial commentary on each.