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Comparison · Comms
Mailu vs RSS.com
A side-by-side editorial comparison of Mailu and RSS.com — release velocity, themes, recent moves, and the top alternatives to consider.
Mailu vs RSS.com: at a glance
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.
What is RSS.com?
RSS.com's changelog is back after ten months, with listener voicemail for podcasts.
RSS.com is a podcast hosting platform. After a public API in December 2025 its changelog went silent until v26.10.1 in October, which lets listeners leave voicemails for a show through a link in the episode notes. Earlier releases added Podcasting 2.0 location tags and a year of analytics lookback.
Mailu vs RSS.com: editorial side-by-side
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.
RSS.com
2.5COMMS
RSS.com's changelog is back after ten months, with listener voicemail for podcasts.
◆ Current state
RSS.com is a podcast hosting platform. After a public API in December 2025 its changelog went silent until v26.10.1 in October, which lets listeners leave voicemails for a show through a link in the episode notes. Earlier releases added Podcasting 2.0 location tags and a year of analytics lookback.
◆ Where it's heading
The October release points toward listener interaction rather than the developer and metadata work of late 2025. One entry after a long gap is too little to call a new direction.
◆ Prediction
Unclear: a single release after ten quiet months doesn't establish a cadence, so the next move can't be read from the entries.
Alternatives to Mailu and RSS.com
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 Mailu or RSS.com.
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.
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.
Slack
Slack lets companies manage Slackbot skills from code and CI, not only by hand
See all Mailu alternatives → · See all RSS.com alternatives →
Recent activity from Mailu and RSS.com
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
- 25d agoRSS.comRSS.com 26.10.1: listener voicemail returns
- 10mo agoRSS.comv25.12.1 ⚡
- 11mo agoRSS.comv25.11.1
- 1y agoRSS.comv25.10.1
Frequently asked questions
What is the difference between Mailu and RSS.com?
They serve adjacent needs but don't currently overlap on shipped themes. Mailu 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 Mailu better than RSS.com?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Mailu 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 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.
What are the best alternatives to RSS.com?
Top RSS.com alternatives in Comms are ranked by recent ship velocity. Browse the "RSS.com alternatives" section above for the current picks, or visit /alternatives/rss-com for the full list with editorial commentary on each.