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Comparison · Comms
grommunio vs Mailu
A side-by-side editorial comparison of grommunio and Mailu — release velocity, themes, recent moves, and the top alternatives to consider.
grommunio vs Mailu: at a glance
What is grommunio?
grommunio's feed publishes release pointers only; the changes themselves live on GitHub.
The crawled feed carries release-note stubs from 2022 to 2026, each the same sentence pointing to GitHub for the detailed logs. 2026.06.2 is the newest, published at the end of September. Nothing in the feed states what changed in any release.
What is Mailu?
Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures
Mailu's 2024.06 branch shipped six pinned releases in October, each tied to a single issue. Three dealt with the resolver: handling the DNSSEC KSK rollover, then making the healthcheck fail on SERVFAIL, re-shipped once. Three were webmail: Roundcube 1.6.20, mitigations for the PHP2Shell CVEs, and then the patched PHP runtime. Late September releases fixed boolean settings that could not be turned off and stale webmail sessions after switching accounts via SSO.
grommunio vs Mailu: editorial side-by-side
grommunio
0.0COMMS
grommunio's feed publishes release pointers only; the changes themselves live on GitHub.
◆ Current state
The crawled feed carries release-note stubs from 2022 to 2026, each the same sentence pointing to GitHub for the detailed logs. 2026.06.2 is the newest, published at the end of September. Nothing in the feed states what changed in any release.
◆ Where it's heading
The only signal available is cadence, and it is thin and irregular: twelve published notes across roughly five years, with 2023.11.x, 2025.01.x and 2026.06.1 as the visible markers. That is a release-notes page maintained as an index rather than a changelog. Reading direction from grommunio would require the GitHub logs these notes point at.
◆ Prediction
Expect the next entry to be another dated pointer of the same form. Whether grommunio's real release cadence matches this feed cannot be determined from what is published here.
Mailu
5.0COMMS
Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures
◆ Current state
Mailu's 2024.06 branch shipped six pinned releases in October, each tied to a single issue. Three dealt with the resolver: handling the DNSSEC KSK rollover, then making the healthcheck fail on SERVFAIL, re-shipped once. Three were webmail: Roundcube 1.6.20, mitigations for the PHP2Shell CVEs, and then the patched PHP runtime. Late September releases fixed boolean settings that could not be turned off and stale webmail sessions after switching accounts via SSO.
◆ Where it's heading
The project remains in one-fix-per-release maintenance on the 2024.06 line, with upstream webmail and PHP security driving much of the cadence. Nothing in the entries points to a new main release.
◆ Prediction
The next releases will most likely follow upstream Roundcube or PHP security fixes, as three of the last six did.
Alternatives to grommunio and Mailu
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 grommunio or Mailu.
Misskey
Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
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.
mailcow
mailcow's monthly releases are mostly upstream security updates with small UI work
The Lounge
The Lounge ships steadily but publishes release notes that say nothing.
See all grommunio alternatives → · See all Mailu alternatives →
Recent activity from grommunio and Mailu
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 10d agoMailuMailu ships patched PHP for PHP2Shell CVEs
- 11d agoMailuMailu mitigates PHP2Shell webmail CVEs
- 12d agoMailuMailu 2024.06.65: Roundcube 1.6.20 update
- 18d agoMailu2024.06.64 re-ships the resolver healthcheck fix
- 20d agoMailu2024.06.63 makes the resolver healthcheck catch SERVFAIL
- 21d agoMailu2024.06.62 handles the DNSSEC KSK rollover
- 1mo agogrommunioRelease Notes 2026.06.2
- 4mo agogrommunioRelease Notes 2026.06.1
- 1y agogrommunioRelease Notes 2025.01.2
- 1y agogrommunioRelease Notes 2025.01.1
- 2y agogrommunioRelease Notes 2023.11.3
- 2y agogrommunioRelease Notes 2023.11.2
Frequently asked questions
What is the difference between grommunio and Mailu?
They serve adjacent needs but don't currently overlap on shipped themes. Mailu is currently shipping more aggressively (velocity 5.0 vs 0.0), 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 grommunio better than Mailu?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Mailu is currently shipping more aggressively (velocity 5.0 vs 0.0), 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 grommunio?
Top grommunio alternatives in Comms are ranked by recent ship velocity. Browse the "grommunio alternatives" section above for the current picks, or visit /alternatives/grommunio for the full list with editorial commentary on each.
What are the best alternatives to Mailu?
Top Mailu alternatives in Comms are ranked by recent ship velocity. Browse the "Mailu alternatives" section above for the current picks, or visit /alternatives/mailu for the full list with editorial commentary on each.