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Comparison · Comms
mailcow vs Zoho Cliq
A side-by-side editorial comparison of mailcow and Zoho Cliq — release velocity, themes, recent moves, and the top alternatives to consider.
mailcow vs Zoho Cliq: at a glance
What is mailcow?
mailcow's release notes are almost entirely upstream security currency.
mailcow ships named seasonal releases with lettered revisions, and nearly every revision exists to pull in an upstream security fix - Redis, ClamAV, SOGo, Rspamd, nginx, unbound, Postfix. Revision B of the Mooly 2026 release updates Redis 7.4.10, ClamAV 1.4.6, and SOGo 5.12.10, adds minor web UI and nginx hardening, and removes a legacy DeltaChat sieve rule. The last release with genuinely new features was the March cut, which added forced 2FA, ACME DNS-01 challenges, and a passwordless autodiscover endpoint.
What is Zoho Cliq?
Cliq exposes itself to AI agents via MCP — first real directional move after a year of quiet incrementalism.
Zoho Cliq is a team-chat product that spent most of 2025 in quiet modernization mode, with the team's own retrospective acknowledging no major launches. Marketing output is high — listicles, year-end roundups, holiday content — while shipped product changes are modest. The early-2026 MCP launch is the first feature in the visible timeline that meaningfully expands what Cliq is for.
mailcow vs Zoho Cliq: editorial side-by-side
mailcow
5.0COMMS
mailcow's release notes are almost entirely upstream security currency.
◆ Current state
mailcow ships named seasonal releases with lettered revisions, and nearly every revision exists to pull in an upstream security fix - Redis, ClamAV, SOGo, Rspamd, nginx, unbound, Postfix. Revision B of the Mooly 2026 release updates Redis 7.4.10, ClamAV 1.4.6, and SOGo 5.12.10, adds minor web UI and nginx hardening, and removes a legacy DeltaChat sieve rule. The last release with genuinely new features was the March cut, which added forced 2FA, ACME DNS-01 challenges, and a passwordless autodiscover endpoint.
◆ Where it's heading
For a self-hosted mail stack that bundles a dozen upstream components, keeping current with their CVEs is the product, and mailcow has organized its release cadence around exactly that. The pattern is consistent: a named release with some feature content every few months, then lettered revisions that are pure security currency plus small web UI escaping and validation fixes. The web interface is where mailcow's own code gets hardened - HTML escaping in quarantine views and sieve editors recurs across several revisions.
◆ Prediction
Expect the next entry to be another lettered revision carrying upstream updates, with the next named release likely bundling whatever feature work has accumulated since March.
Zoho Cliq
0.0COMMS
Cliq exposes itself to AI agents via MCP — first real directional move after a year of quiet incrementalism.
◆ Current state
Zoho Cliq is a team-chat product that spent most of 2025 in quiet modernization mode, with the team's own retrospective acknowledging no major launches. Marketing output is high — listicles, year-end roundups, holiday content — while shipped product changes are modest. The early-2026 MCP launch is the first feature in the visible timeline that meaningfully expands what Cliq is for.
◆ Where it's heading
Cliq is repositioning from a pure chat UI into an AI-callable workspace surface. The MCP integration lets Claude, Cursor, and Copilot drive Cliq actions — scheduling, channel messaging, follow-ups — which is a categorically different value proposition than 'better Slack alternative.' The marketing-heavy content cadence persists alongside this, suggesting the AI-agent surface is one bet, not a full pivot.
◆ Prediction
Expect the MCP toolset to expand into deeper actions — message search, role-based posting, automated channel curation — and a Cliq-side AI assistant that uses the same surface internally. Cross-Zoho MCP bridges (Cliq ↔ Books, Desk, CRM) are the obvious next layer.
Alternatives to mailcow and Zoho Cliq
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 mailcow or Zoho Cliq.
Proton Bridge
Proton Bridge spends its first release in ten weeks on crashes, memory bounds and dead code
Stalwart
Stalwart is chasing mail RFCs and its own storage layer at the same time
Mux
Every manual control Mux ships now arrives with a Robots workflow that does it for you
Netcore Cloud
Netcore's feed remains a demand-generation channel; ten entries, zero product releases.
Openfire
Openfire keeps its XMPP server current without changing what it is.
See all mailcow alternatives → · See all Zoho Cliq alternatives →
Recent activity from mailcow and Zoho Cliq
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agomailcow🏖️🐮 Mooly 2026 | Postfix 3.10.12, Rspamd 4.1.0 & Nginx 1.30.3 - Revision B
- 20d agomailcow🏖️🐮 Mooly 2026 | Postfix 3.10.12, Rspamd 4.1.0 & Nginx 1.30.3 - Revision A
- 1mo agomailcow🏖️🐮 Mooly 2026 | Postfix 3.10.12, Rspamd 4.1.0 & Nginx 1.30.3
- 2mo agomailcowThird May revision: unbound CVE and nginx 1.30.2
- 3mo agomailcowSecond May revision: quarantine table HTML escaping
- 3mo agomailcowSOGo 5.12.8 covering four upstream security issues
- 6mo agoZoho CliqBuild AI-powered workflows with Zoho Cliq MCP and the Cliq developer platform ⚡
- 7mo agoZoho CliqTeam communication in 2026: What’s changing, what’s fading, and what’s next
- 7mo agoZoho CliqMake clear communication your number one goal for 2026 with these insights
- 7mo agoZoho CliqA sneak peek inside Cliq's 2025 evolution
- 8mo agoZoho CliqTop shortcuts to work your way through Zoho Cliq
- 9mo agoZoho CliqHow Zoho Cliq fuels smart cross-team collaboration
Frequently asked questions
What is the difference between mailcow and Zoho Cliq?
They serve adjacent needs but don't currently overlap on shipped themes. mailcow is currently shipping more aggressively (velocity 5.0 vs 0.0), 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 mailcow better than Zoho Cliq?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. mailcow is currently shipping more aggressively (velocity 5.0 vs 0.0), 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 mailcow?
Top mailcow alternatives in Comms are ranked by recent ship velocity. Browse the "mailcow alternatives" section above for the current picks, or visit /alternatives/mailcow for the full list with editorial commentary on each.
What are the best alternatives to Zoho Cliq?
Top Zoho Cliq alternatives in Comms are ranked by recent ship velocity. Browse the "Zoho Cliq alternatives" section above for the current picks, or visit /alternatives/zoho-cliq for the full list with editorial commentary on each.