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Smartsupp vs Stalwart

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

Smartsupp vs Stalwart: at a glance

FeatureSmartsuppStalwart
SectorCommsComms
Velocity score2.55.0
Sparks · 30d00
Top themeslive-chat, ai-assistant, ecommerce, mira-aiemail-standards, jmap, imap, dmarc
Last editorial update1mo ago1d ago
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What is Smartsupp?

Smartsupp keeps compounding its Mira AI shopping assistant

Smartsupp's updates are a steady build-out of its Mira AI shopping assistant and live chat: one-click conversation translation, product cards pulled from the merchant feed, richer AI-response formatting, automatic website-content refresh, and full-context awareness so Mira stops asking for details it can look up. A compact chat-box header is the lone cosmetic item.

Read the full Smartsupp trajectory →

What is Stalwart?

Stalwart is shipping email's next-generation auth stack while the specs are still in draft.

Stalwart is an all-in-one mail and collaboration server — SMTP, IMAP, JMAP, CalDAV, CardDAV and WebDAV in one binary — releasing every one to two weeks on the 0.16.x line. The last two months read as a standards campaign: DKIM2 and the full DMARCbis set in 0.16.12, VAPID push in 0.16.14, FreeBSD support in 0.16.13, and a run of IMAP extensions (UIDONLY, UIDBATCHES, MESSAGELIMIT/SAVELIMIT) in 0.16.17. Between the additions, most of each release is JMAP conformance repair driven by the jmap-test-suite.

Read the full Stalwart trajectory →

Smartsupp vs Stalwart: editorial side-by-side

S2.5

Smartsupp keeps compounding its Mira AI shopping assistant

◆ Current state

Smartsupp's updates are a steady build-out of its Mira AI shopping assistant and live chat: one-click conversation translation, product cards pulled from the merchant feed, richer AI-response formatting, automatic website-content refresh, and full-context awareness so Mira stops asking for details it can look up. A compact chat-box header is the lone cosmetic item.

◆ Where it's heading

The direction is a more autonomous, context-aware commerce assistant, grounding Mira in the merchant's own feed and site, cutting manual setup, and smoothing multilingual support. Each release is incremental, but together they push Smartsupp from live chat toward an AI-first shopping layer.

◆ Prediction

Expect further Mira grounding and autonomy, with more automatic data sourcing and richer in-chat commerce as the product-card work points toward deeper catalog actions. Multilingual support looks set to widen.

S5.0

Stalwart is shipping email's next-generation auth stack while the specs are still in draft.

◆ Current state

Stalwart is an all-in-one mail and collaboration server — SMTP, IMAP, JMAP, CalDAV, CardDAV and WebDAV in one binary — releasing every one to two weeks on the 0.16.x line. The last two months read as a standards campaign: DKIM2 and the full DMARCbis set in 0.16.12, VAPID push in 0.16.14, FreeBSD support in 0.16.13, and a run of IMAP extensions (UIDONLY, UIDBATCHES, MESSAGELIMIT/SAVELIMIT) in 0.16.17. Between the additions, most of each release is JMAP conformance repair driven by the jmap-test-suite.

◆ Where it's heading

The project is building toward being the reference implementation of the modern mail stack — JMAP first, with the classic protocols held at parity rather than left behind. The fix lists have shifted in character over these eight releases: less "feature does not work", more "spec detail is wrong", which is what a codebase looks like as it converges on conformance. Security and multi-tenancy fixes keep appearing alongside the protocol work, indicating real deployments are exercising the newer subsystems.

◆ Prediction

The next releases most likely track revisions to the drafts already implemented — DKIM2, JMAP push and the calendar drafts are all still moving — rather than adding another protocol surface. Expect continued JMAP conformance fixes until the test suite stops producing them.

Alternatives to Smartsupp and Stalwart

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 Smartsupp or Stalwart.

See all Smartsupp alternatives → · See all Stalwart alternatives →

Recent activity from Smartsupp and Stalwart

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

  1. 1d agoStalwartIMAP gains UIDONLY, UIDBATCHES and message-limit extensions
  2. 9d agoStalwartJMAP delivery push arrives; strict relays stop rejecting calendar mail
  3. 15d agoStalwartFix-only release: JMAP semantics and a credential escalation
  4. 22d agoStalwartVAPID lands for JMAP Web Push
  5. 1mo agoStalwartFreeBSD support, plus OAuth scopes for IMAP, SMTP and Sieve
  6. 1mo agoStalwartDKIM2 and the full DMARCbis suite ship in one release
  7. 1mo agoSmartsuppNew compact header style
  8. 2mo agoSmartsuppChat with customers in their native language
  9. 2mo agoSmartsuppProduct cards straight from your feed
  10. 4mo agoSmartsuppAI responses are now easier to read
  11. 4mo agoSmartsuppYour AI shopping assistant now always has up-to-date info from your website
  12. 6mo agoSmartsuppMira AI now understands the full context of conversations

Frequently asked questions

What is the difference between Smartsupp and Stalwart?

They serve adjacent needs but don't currently overlap on shipped themes. Stalwart 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 Smartsupp better than Stalwart?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Stalwart 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 Smartsupp?

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

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.