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Comparison · Comms

mailcow vs VerneMQ

A side-by-side editorial comparison of mailcow and VerneMQ — release velocity, themes, recent moves, and the top alternatives to consider.

mailcow vs VerneMQ: at a glance

FeaturemailcowVerneMQ
SectorCommsComms
Velocity score5.02.5
Sparks · 30d00
Top themesmail-server, self-hosted, security-updates, dockermqtt, message-broker, clustering, shared-subscriptions
Last editorial update4h ago1h ago
WebsiteVisit →Visit →

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.

Read the full mailcow trajectory →

What is VerneMQ?

VerneMQ follows its year-in-the-making 2.2.0 with a quick round of subscription fixes.

VerneMQ releases infrequently; 2.2.0 on August 9 gathered about a year of cluster and connection work, including a socket-counting fix under rapid reconnects and faster inter-node readiness checks. 2.2.1 on October 16 followed with fixes for stale shared subscriptions after trie restarts, enforcement of non-zero message ids, and new webhook connect options.

Read the full VerneMQ trajectory →

mailcow vs VerneMQ: editorial side-by-side

M
mailcow
COMMS
5.0

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.

V
VerneMQ
COMMS
2.5

VerneMQ follows its year-in-the-making 2.2.0 with a quick round of subscription fixes.

◆ Current state

VerneMQ releases infrequently; 2.2.0 on August 9 gathered about a year of cluster and connection work, including a socket-counting fix under rapid reconnects and faster inter-node readiness checks. 2.2.1 on October 16 followed with fixes for stale shared subscriptions after trie restarts, enforcement of non-zero message ids, and new webhook connect options.

◆ Where it's heading

Two months between 2.2.0 and 2.2.1 is quick for this project, which suggests 2.2 is getting active maintenance. The work stays inside the broker: subscriptions, clustering and protocol correctness rather than new features.

◆ Prediction

Further 2.2.x patches are more likely than a new minor; the feed gives no sign of 2.3 work.

Alternatives to mailcow and VerneMQ

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 VerneMQ.

See all mailcow alternatives → · See all VerneMQ alternatives →

Recent activity from mailcow and VerneMQ

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 12d agomailcow🎃🐮 Mooctober 2026 | Security Update: PHP 8.2.35, SOGo 5.12.12 & Nginx 1.30.6
  2. 17d agoVerneMQVerneMQ 2.2.1
  3. 27d agomailcow2026-09a: Rspamd 4.2.1 and postfix-tlspol bumps
  4. 1mo agomailcow🍂🐮 Mootember 2026 | Unbound 1.26.1, SOGo 5.12.11 & Redis 7.4.11
  5. 2mo agomailcow🏖️🐮 Mooly 2026 | Postfix 3.10.12, Rspamd 4.1.0 & Nginx 1.30.3 - Revision B
  6. 2mo agoVerneMQSocket-count fix, WS(S) anonymous override, faster cluster readiness
  7. 3mo agomailcow🏖️🐮 Mooly 2026 | Postfix 3.10.12, Rspamd 4.1.0 & Nginx 1.30.3 - Revision A
  8. 3mo agomailcow🏖️🐮 Mooly 2026 | Postfix 3.10.12, Rspamd 4.1.0 & Nginx 1.30.3
  9. 6mo agoVerneMQTesting candidate later folded into 2.2.0
  10. 7mo agoVerneMQSUBACK error-path fix and routing-table memory reduction
  11. 1y agoVerneMQSyslog boot fix and an HTTPS config regression from 2.1.0
  12. 1y agoVerneMQBreaking on-disk metadata format change

Frequently asked questions

What is the difference between mailcow and VerneMQ?

They serve adjacent needs but don't currently overlap on shipped themes. mailcow is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is mailcow better than VerneMQ?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. mailcow is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. 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 VerneMQ?

Top VerneMQ alternatives in Comms are ranked by recent ship velocity. Browse the "VerneMQ alternatives" section above for the current picks, or visit /alternatives/vernemq for the full list with editorial commentary on each.