Rspamd
Rspamd 4.3 fixes SPF evaluation order and rejects weak DKIM keys, with results that change.
Comparison · Comms
Maddy vs Krisp
A side-by-side editorial comparison of Maddy and Krisp — release velocity, themes, recent moves, and the top alternatives to consider.
Maddy vs Krisp: at a glance
| Feature | Maddy | Krisp |
|---|---|---|
| Sector | Comms | Comms |
| Velocity score | 2.5 | 5.0 |
| Sparks · 30d | 0 | 0 |
| Top themes | mail-server, self-hosted, golang, security | call-center-ai, transcription, voice-translation, fraud-detection |
| Last editorial update | 8d ago | 21h ago |
| Website | Visit → | — |
What is Maddy?
maddy's back-to-back security releases close DMARC bypasses and IMAP storage bugs.
maddy is an all-in-one Go mail server for SMTP and IMAP. Its last two releases are security fixes: 0.9.6 in October required explicit trust for PROXY headers and closed an auth misconfiguration, and 0.9.7 fixes two DMARC verification bypasses that let attackers spoof domains with p=reject, plus long-standing IMAP storage bugs. Malformed MIME messages are now stored as a single part instead of being lost.
What is Krisp?
Krisp moves call transcripts and live captions to cloud transcription in KrispCX 2.84.4.
Krisp sells a Call Center AI suite to BPOs and contact centers: Accent Conversion, Voice Translation, QA scoring, deepfake and fraud detection. KrispCX 2.84.4 adds cloud transcription in beta for more accurate transcripts and Live Captions, plus in-call hints when the Krisp microphone is in use; the source note is truncated. October brought Conference mode for Voice Translation and a Fraud Detection beta.
Maddy vs Krisp: editorial side-by-side
Maddy
2.5COMMS
maddy's back-to-back security releases close DMARC bypasses and IMAP storage bugs.
◆ Current state
maddy is an all-in-one Go mail server for SMTP and IMAP. Its last two releases are security fixes: 0.9.6 in October required explicit trust for PROXY headers and closed an auth misconfiguration, and 0.9.7 fixes two DMARC verification bypasses that let attackers spoof domains with p=reject, plus long-standing IMAP storage bugs. Malformed MIME messages are now stored as a single part instead of being lost.
◆ Where it's heading
Feature work stopped after the 0.9 line in spring; recent releases are driven by reported vulnerabilities. The project is fixing correctness in mail authentication and storage rather than adding capabilities.
◆ Prediction
Further security point releases look more likely than a 0.10.0 feature release, though 0.9.1 flagged libdns provider removals for 0.10.0.
Krisp
5.0COMMS
Krisp moves call transcripts and live captions to cloud transcription in KrispCX 2.84.4.
◆ Current state
Krisp sells a Call Center AI suite to BPOs and contact centers: Accent Conversion, Voice Translation, QA scoring, deepfake and fraud detection. KrispCX 2.84.4 adds cloud transcription in beta for more accurate transcripts and Live Captions, plus in-call hints when the Krisp microphone is in use; the source note is truncated. October brought Conference mode for Voice Translation and a Fraud Detection beta.
◆ Where it's heading
Releases arrive on a two-week cadence and keep stacking agent-assist features on the live call, from translation to fraud signals to captions. The September move to free-to-try has been followed by incremental depth rather than new product lines.
◆ Prediction
Expect more of the live-call layer to move to cloud processing, with QA scoring and translation likely reusing the new transcription. The truncated notes leave the scope of the cloud beta unclear.
Alternatives to Maddy and Krisp
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 Maddy or Krisp.
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.
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.
Recent activity from Maddy and Krisp
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 22h agoKrispKrispCX 2.84.4 adds cloud transcription for transcripts and captions
- 8d agoMaddymaddy 0.9.7 fixes two DMARC bypasses and IMAP storage bugs
- 18d agoKrispKrisp 2.83.4 adds Conference mode to Voice Translation (beta)
- 26d agoKrispKrisp September roundup: translation accuracy reports, voice flags
- 28d agoKrispKrisp 3.18.3 AI Meeting Assistant Updates
- 1mo agoKrispKrisp 2.82.6 adds real-time Fraud Detection beta for agents
- 1mo agoMaddymaddy 0.9.6 fixes PROXY trust and auth bypass misconfig
- 1mo agoKrispKrisp 3.17.4 adds call duration tracking and notes alerts
- 5mo agoMaddymaddy 0.9.5 fixes nested pipeline logging and systemd reload reporting
- 6mo agoMaddymaddy 0.9.4 removes the maddyctl symlink and implicit run command
- 7mo agoMaddymaddy 0.9.3 patches an LDAP injection flaw in auth.ldap
- 7mo agoMaddymaddy 0.9.2 fixes an rspamd panic on unspecified tls_client
Frequently asked questions
What is the difference between Maddy and Krisp?
They serve adjacent needs but don't currently overlap on shipped themes. Krisp 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 Maddy better than Krisp?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Krisp 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 Maddy?
Top Maddy alternatives in Comms are ranked by recent ship velocity. Browse the "Maddy alternatives" section above for the current picks, or visit /alternatives/maddy for the full list with editorial commentary on each.
What are the best alternatives to Krisp?
Top Krisp alternatives in Comms are ranked by recent ship velocity. Browse the "Krisp alternatives" section above for the current picks, or visit /alternatives/krisp for the full list with editorial commentary on each.