Rspamd
Rspamd 4.3 fixes SPF evaluation order and rejects weak DKIM keys, with results that change.
Comparison · Comms
Stalwart vs Salesmsg
A side-by-side editorial comparison of Stalwart and Salesmsg — release velocity, themes, recent moves, and the top alternatives to consider.
Stalwart vs Salesmsg: at a glance
What is Stalwart?
Stalwart's weekly releases have turned from new standards to correctness fixes.
Stalwart's releases since v0.16.20 are dominated by long Fixed lists across IMAP, JMAP, MTA, DMARC and iTIP. Additions have been small: a PowerDNS provider in 0.16.24, sd_notify and JMAP mailbox behavior in 0.16.26. The most consequential repair is a RocksDB bug in 0.16.26 that rewrote every stored blob on each compaction of the blobs column family, about once per 128MB of new mail.
What is Salesmsg?
Salesmsg adds call-back requests and a one-click Emergency Stop for all outbound texts.
Salesmsg's autumn releases added survey automation, Click Tracking, upgraded Reviews and an official MCP server, then turned Sherpa AI into an assistant that sends replies and builds broadcasts after approval. The November 12 update moves to calling and safety controls: callers can request a callback instead of holding, Emergency Stop pauses every outbound message at once, inboxes can require call recording, tags can be applied during calls with HubSpot sync, and a weekly recap reports AI agent performance.
Stalwart vs Salesmsg: editorial side-by-side
Stalwart
5.0COMMS
Stalwart's weekly releases have turned from new standards to correctness fixes.
◆ Current state
Stalwart's releases since v0.16.20 are dominated by long Fixed lists across IMAP, JMAP, MTA, DMARC and iTIP. Additions have been small: a PowerDNS provider in 0.16.24, sd_notify and JMAP mailbox behavior in 0.16.26. The most consequential repair is a RocksDB bug in 0.16.26 that rewrote every stored blob on each compaction of the blobs column family, about once per 128MB of new mail.
◆ Where it's heading
After the SCIM v2 release in August, the project has shifted from extending coverage to making existing coverage hold up under real use. The bug reports now describe specific interoperability cases, such as Apple Calendar duplicates and DMARC report formatting, which suggests production traffic is driving the queue. The weekly cadence itself has not changed.
◆ Prediction
Expect more weekly fix releases on the same pattern. The entries show no sign of the next major capability, so its timing is unclear.
Salesmsg
6.3COMMS
Salesmsg adds call-back requests and a one-click Emergency Stop for all outbound texts.
◆ Current state
Salesmsg's autumn releases added survey automation, Click Tracking, upgraded Reviews and an official MCP server, then turned Sherpa AI into an assistant that sends replies and builds broadcasts after approval. The November 12 update moves to calling and safety controls: callers can request a callback instead of holding, Emergency Stop pauses every outbound message at once, inboxes can require call recording, tags can be applied during calls with HubSpot sync, and a weekly recap reports AI agent performance.
◆ Where it's heading
With AI now able to send messages, Salesmsg is adding the brakes: an organization-wide stop switch and weekly reports on what its AI agents did. Calling features keep catching up with texting, with queue callbacks and recording rules.
◆ Prediction
Expect more controls over what Sherpa and AI agents may send, such as per-agent limits or approval rules, alongside further HubSpot call-data sync.
Alternatives to Stalwart and Salesmsg
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 Stalwart or Salesmsg.
Twilio
Twilio's voice AI stops cutting callers off mid-sentence, using its own turn-taking model.
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.
SlickText
SlickText's feed is all SMS buying guides; no product release has surfaced since RCS.
See all Stalwart alternatives → · See all Salesmsg alternatives →
Recent activity from Stalwart and Salesmsg
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoSalesmsgCallback Requests, an Emergency Stop, and Smarter Call Controls This November
- 8d agoSalesmsgSherpa AI sends messages and builds broadcasts on request ⚡
- 15d agoSalesmsgTrack Every Link You Send and Understand What Drives Engagement
- 22d agoSalesmsgUnlock More Value from Every Rating with Upgraded Salesmsg Reviews
- 26d agoStalwartv0.16.27: IMAP SEARCH RETURN and iTIP time zone fixes
- 29d agoSalesmsgSalesmsg MCP Now is Officially Listed in Open AI and Claude and Your Favorite AI Assistants
- 1mo agoStalwartv0.16.26 fixes RocksDB rewriting every blob on compaction
- 1mo agoSalesmsgTrack Every Call, Train Your AI Agent, and Automate More This October
- 1mo agoStalwartv0.16.25: JMAP MaskedEmail and Autodiscover fixes
- 1mo agoStalwartv0.16.24: PowerDNS provider and phishing list matching fix
- 1mo agoStalwartv0.16.23: nested list delivery and lost DSN fixes
- 2mo agoStalwartv0.16.22: STARTTLS session reset and DMARC result fixes
Frequently asked questions
What is the difference between Stalwart and Salesmsg?
They serve adjacent needs but don't currently overlap on shipped themes. Salesmsg is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 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 Stalwart better than Salesmsg?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Salesmsg is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 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 Stalwart?
Top Stalwart alternatives in Comms are ranked by recent ship velocity. Browse the "Stalwart alternatives" section above for the current picks, or visit /alternatives/stalwart for the full list with editorial commentary on each.
What are the best alternatives to Salesmsg?
Top Salesmsg alternatives in Comms are ranked by recent ship velocity. Browse the "Salesmsg alternatives" section above for the current picks, or visit /alternatives/salesmsg for the full list with editorial commentary on each.