Rspamd
Rspamd 4.3 fixes SPF evaluation order and rejects weak DKIM keys, with results that change.
Comparison · Comms
Mailu vs SlickText
A side-by-side editorial comparison of Mailu and SlickText — release velocity, themes, recent moves, and the top alternatives to consider.
Mailu vs SlickText: 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 ships pinned releases, each tied to a single issue. October brought resolver fixes for the DNSSEC KSK rollover and SERVFAIL healthchecks, Roundcube 1.6.20, then PHP2Shell CVE mitigations in webmail followed by the patched PHP runtime. 2024.06.68 on 8 November carries the same PHP2Shell mitigation note again.
What is SlickText?
SlickText's feed is all SMS buying guides; no product release has surfaced since RCS.
SlickText's recent feed is entirely search content: SMS segmentation, church and nonprofit texting comparisons, Black Friday tactics, cost breakdowns and guides on annual plans. No release appears in the entries since the basic RCS addition.
Mailu vs SlickText: 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 ships pinned releases, each tied to a single issue. October brought resolver fixes for the DNSSEC KSK rollover and SERVFAIL healthchecks, Roundcube 1.6.20, then PHP2Shell CVE mitigations in webmail followed by the patched PHP runtime. 2024.06.68 on 8 November carries the same PHP2Shell mitigation note again.
◆ 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.
SlickText
5.0COMMS
SlickText's feed is all SMS buying guides; no product release has surfaced since RCS.
◆ Current state
SlickText's recent feed is entirely search content: SMS segmentation, church and nonprofit texting comparisons, Black Friday tactics, cost breakdowns and guides on annual plans. No release appears in the entries since the basic RCS addition.
◆ Where it's heading
The content is getting more explicit about buying decisions. Vertical comparison pages, published prices and an outgrown-your-platform pitch all aim at people ready to switch. Product motion cannot be read from these posts.
◆ Prediction
Expect Black Friday content through November and more vertical comparison pages. These entries give no evidence of how RCS is progressing.
Alternatives to Mailu and SlickText
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 SlickText.
Twilio
Twilio's voice AI stops cutting callers off mid-sentence, using its own turn-taking model.
Salesmsg
Salesmsg adds call-back requests and a one-click Emergency Stop for all outbound texts.
Element
Element 1.12.35 follows the call picture-in-picture release with one desktop storage fix.
Krisp
Krisp moves call transcripts and live captions to cloud transcription in KrispCX 2.84.4.
Misskey
Misskey 2026.11 ships: a leaner start script, and Node.js 22 no longer boots.
See all Mailu alternatives → · See all SlickText alternatives →
Recent activity from Mailu and SlickText
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoSlickTextSMS Segmentation: How to Send More Relevant Text Messages
- 5d agoMailu2024.06.68 re-ships the PHP2Shell webmail mitigation
- 22d agoMailuMailu ships patched PHP for PHP2Shell CVEs
- 22d agoSlickTextWho Should Choose an Annual SMS Marketing Plan? 7 Examples
- 22d agoMailuMailu mitigates PHP2Shell webmail CVEs
- 24d agoMailuMailu 2024.06.65: Roundcube 1.6.20 update
- 28d agoSlickText5 Best Church Texting Services (Compared)
- 1mo agoMailu2024.06.64 re-ships the resolver healthcheck fix
- 1mo agoMailu2024.06.63 makes the resolver healthcheck catch SERVFAIL
- 1mo agoSlickTextBlack Friday SMS Marketing: 7 Tactics for Before, During, and After the Sale
- 1mo agoSlickTextHow Much Does SMS Marketing Cost? Real Monthly Budgets
- 1mo agoSlickTextSMS Automation for Small Business: 8 Examples to Get You Started
Frequently asked questions
What is the difference between Mailu and SlickText?
They serve adjacent needs but don't currently overlap on shipped themes. Mailu and SlickText 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 Mailu better than SlickText?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Mailu and SlickText 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 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 SlickText?
Top SlickText alternatives in Comms are ranked by recent ship velocity. Browse the "SlickText alternatives" section above for the current picks, or visit /alternatives/slicktext for the full list with editorial commentary on each.