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Dovecot vs Superhuman

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

Dovecot vs Superhuman: at a glance

FeatureDovecotSuperhuman
SectorCommsComms
Velocity score2.56.3
Sparks · 30d01
Top themesemail-infrastructure, imap, security-hardening, cve-responseai-drafting, calendar-integration, mcp, mobile
Last editorial update19d ago2h ago
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What is Dovecot?

Dovecot's 2.4 branch is being hardened release by release after a breaking rewrite.

Dovecot is the IMAP and POP3 server behind a large share of the world's mailboxes. The 2.4 branch opened in January 2025 with a deliberately incompatible release — configuration files must be rewritten, the plugin section is gone, and several long-standing features were removed outright — and every release since has been consolidation on top of it. The pattern is consistent: each point release leads with critical CVE fixes, then lists incremental changes. The latest, 2.4.5, carries twelve CVEs alongside post-quantum ML-KEM support, full-text phrase searching and a throttling response code.

Read the full Dovecot trajectory →

What is Superhuman?

Superhuman rebuilt its mobile apps and wired every inbox into AI assistants — the email client is becoming a suite.

Superhuman has evolved from a keyboard-shortcut email client into an AI-native communication platform covering email, calendar, and AI drafting agents — all gated on Business/Enterprise tiers. The mobile apps, long a weak point relative to desktop, received their first major overhaul in years with a redesigned navigation model and native iOS/Android aesthetics. MCP support with multi-account access is live, letting AI assistants like Claude and ChatGPT operate across all connected inboxes simultaneously. Calendar coverage now spans desktop, Android, and iOS with room booking and multi-day views.

Read the full Superhuman trajectory →

Dovecot vs Superhuman: editorial side-by-side

D
Dovecot
COMMS
2.5

Dovecot's 2.4 branch is being hardened release by release after a breaking rewrite.

◆ Current state

Dovecot is the IMAP and POP3 server behind a large share of the world's mailboxes. The 2.4 branch opened in January 2025 with a deliberately incompatible release — configuration files must be rewritten, the plugin section is gone, and several long-standing features were removed outright — and every release since has been consolidation on top of it. The pattern is consistent: each point release leads with critical CVE fixes, then lists incremental changes. The latest, 2.4.5, carries twelve CVEs alongside post-quantum ML-KEM support, full-text phrase searching and a throttling response code.

◆ Where it's heading

Two things are being worked at once. Security is the visible half, and the volume is striking — resource-exhaustion and parser issues in IMAP THREAD, LIST and ID, a CRIME-style compression side channel, an authentication bypass through XCLIENT forwarding. The quieter half is that fixes are increasingly gated behind version declarations: the THREAD fix needs a new index format enabled only by raising dovecot_storage_version. That mechanism, introduced with 2.4.0, is now doing real work, letting operators take format changes on their own schedule.

◆ Prediction

Experimental flags for mail UTF-8 and IMAP4rev2 have carried unchanged through every 2.4 release so far; the next branch-defining move is one of those graduating to default rather than another security round.

S6.3

Superhuman rebuilt its mobile apps and wired every inbox into AI assistants — the email client is becoming a suite.

◆ Current state

Superhuman has evolved from a keyboard-shortcut email client into an AI-native communication platform covering email, calendar, and AI drafting agents — all gated on Business/Enterprise tiers. The mobile apps, long a weak point relative to desktop, received their first major overhaul in years with a redesigned navigation model and native iOS/Android aesthetics. MCP support with multi-account access is live, letting AI assistants like Claude and ChatGPT operate across all connected inboxes simultaneously. Calendar coverage now spans desktop, Android, and iOS with room booking and multi-day views.

◆ Where it's heading

Superhuman is building toward a unified communication suite — the rebranded 'Superhuman Mail' name explicitly anticipates Mail, Docs, and Go as sibling products. The heavy investment in calendar (rooms, Android, multi-day iOS views) signals calendar parity with email as a near-term priority. AI drafting is moving toward full automation: Auto Drafts 2.0 already completes 60% of replies without editing, and the team has announced a voice mode and a rewritten email engine as the next milestones.

◆ Prediction

Voice mode and a rewritten email engine are both on the stated roadmap. The most likely next shipping moment is deeper tool integrations for Auto Drafts — Slack and meeting-notes context were specifically teased — which would close the gap between drafting and the rest of a user's work context.

Alternatives to Dovecot and Superhuman

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 Dovecot or Superhuman.

See all Dovecot alternatives → · See all Superhuman alternatives →

Recent activity from Dovecot and Superhuman

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

  1. 1d agoSuperhumanMeeting Rooms 📆
  2. 6d agoSuperhumanOutlook categories 🏷️
  3. 15d agoSuperhumanSuperhuman Mail for iOS & Android 📱
  4. 15d agoSuperhumanA fresh look for Superhuman Mail ✨
  5. 19d agoDovecotTwelve CVEs fixed; ML-KEM and full-text phrase search arrive
  6. 22d agoSuperhumanLabels on drafts sync with Gmail 🔄
  7. 1mo agoSuperhumanMultiple email accounts in Claude, ChatGPT, and MCP 🤖
  8. 4mo agoDovecotCVE fixes in variable expansion and CRAM-SHA authentication
  9. 5mo agoDovecotCVE fixes for base64 auth DoS and decode2text
  10. 10mo agoDovecotAuth cache key collision fixed; libpcre2 becomes a dependency
  11. 1y agoDovecot2.4 branch signing key rotates; packages break 2.3 configs
  12. 1y agoDovecotDovecot 2.4 lands: configs must be rewritten, director removed

Frequently asked questions

What is the difference between Dovecot and Superhuman?

They serve adjacent needs but don't currently overlap on shipped themes. Superhuman is currently shipping more aggressively (velocity 6.3 vs 2.5), 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 Dovecot better than Superhuman?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Superhuman is currently shipping more aggressively (velocity 6.3 vs 2.5), 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 Dovecot?

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

What are the best alternatives to Superhuman?

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