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Rocket.Chat's fifth 9.0 candidate is about load: notifications, presence and startup.
Alternatives · team communication tools
Dovecot alternatives
The best Dovecot alternatives in team communication tools, ranked by Sparkpulse's velocity_score.
Updated Nov 4, 2026
Looking for the best alternatives to Dovecot? Sparkpulse tracks and ranks 12 alternatives in team communication tools by shipping velocity — how frequently each ships meaningful updates, verified from official changelogs. For reference, Dovecot shipped 0 meaningful updates in the last 30 days and carries a velocity score of 2.5 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.
About 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.
Velocity 2.5 · Last update 2mo ago
Top 12 alternatives to Dovecot
Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.
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Stoat moves to release candidates and Gerrit, and gives server admins more control.
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Element 1.12.34 RC pops calls into picture-in-picture and lets modules shut off public rooms.
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Synapse 1.164 advertises Matrix v1.16 and v1.17 amid a run of dependency security patches
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Session survived its funding scare; now Pro is on hold and Protocol v2 is the bet.
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Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
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Apprise 2 is out: notify() returns a result object, and 2.1 takes the catalog to 170 services.
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mailcow's monthly releases are mostly upstream security updates with small UI work
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Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures
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Slack lets companies manage Slackbot skills from code and CI, not only by hand
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Bandwidth widens its BYOC footprint and lets developers trial messaging without a sales call.
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Roundcube's October release patches 13 more holes on both branches at once.
Dovecot vs alternatives — shipping velocity at a glance
Velocity score (0–10) and meaningful releases shipped in the last 30 days, from official changelogs. Higher = shipping faster.
| Product | Velocity | Sparks · 30d | Focus areas | Latest release |
|---|---|---|---|---|
| Dovecot (baseline) | 2.5 | 0 | email-infrastructureimapsecurity-hardening | Dovecot 2.4 lands: configs must be rewritten, director removed |
| Rocket.Chat | 6.3 | 1 | team-chatlicensingsso | 9.0 rc.0: LDAP, SAML and Custom OAuth become premium-only |
| Stoat | 5.0 | 0 | chatself-hostedmoderation | — |
| Element | 5.0 | 0 | encryptionrecovery-keysmodule-api | — |
| Synapse | 5.0 | 0 | matrix-protocolhomeserversecurity-patches | — |
| Session | 5.0 | 0 | private messagingpost-quantumsession pro | — |
| Misskey | 5.0 | 0 | fediverseactivitypubself-hosted | — |
| Apprise | 5.0 | 0 | notificationspythonmajor version | Last release of the v1.x line — pin before v2 breaks |
| mailcow | 5.0 | 0 | mail-serverself-hostedsecurity-updates | — |
| Mailu | 5.0 | 0 | maintenance-branchroundcubecve-patching | — |
| Slack | 5.0 | 0 | agentsslackbot-skillsblock-kit | — |
| Bandwidth | 5.0 | 0 | communications-apibyoccontact-center | — |
| Roundcube | 5.0 | 0 | webmailsecuritylts-maintenance | — |
The 12 best Dovecot alternatives, in depth
1. Rocket.Chat · velocity 6.3
Rocket.Chat's fifth 9.0 candidate is about load: notifications, presence and startup.
Over the last 30 days Rocket.Chat shipped 1 meaningful update vs Dovecot's 0, most recently “9.0 rc.0: LDAP, SAML and Custom OAuth become premium-only”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Rocket.Chat focuses on team chat, licensing and sso.
Over the last 30 days Rocket.Chat has been shipping faster than Dovecot — a point in its favour if release momentum matters to you.
Full Rocket.Chat trajectory → · Compare Dovecot vs Rocket.Chat →
2. Stoat · velocity 5.0
Stoat moves to release candidates and Gerrit, and gives server admins more control.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Stoat focuses on chat, self hosted and moderation.
Stoat and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
3. Element · velocity 5.0
Element 1.12.34 RC pops calls into picture-in-picture and lets modules shut off public rooms.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Element focuses on encryption, recovery keys and module api.
Element and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
4. Synapse · velocity 5.0
Synapse 1.164 advertises Matrix v1.16 and v1.17 amid a run of dependency security patches.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Synapse focuses on matrix protocol, homeserver and security patches.
Synapse and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
5. Session · velocity 5.0
Session survived its funding scare; now Pro is on hold and Protocol v2 is the bet.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Session focuses on private messaging, post quantum and session pro.
Session and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
6. Misskey · velocity 5.0
Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Misskey focuses on fediverse, activitypub and self hosted.
Misskey and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
7. Apprise · velocity 5.0
Apprise 2 is out: notify() returns a result object, and 2.1 takes the catalog to 170 services.
Its velocity score of 5.0/10 reflects longer-term release cadence; its most recent meaningful update was “Last release of the v1.x line — pin before v2 breaks”.
Where Dovecot leans on email infrastructure, imap and security hardening, Apprise focuses on notifications, python and major version.
Apprise and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
8. mailcow · velocity 5.0
Mailcow's monthly releases are mostly upstream security updates with small UI work.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, mailcow focuses on mail server, self hosted and security updates.
mailcow and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
9. Mailu · velocity 5.0
Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Mailu focuses on maintenance branch, roundcube and cve patching.
Mailu and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
10. Slack · velocity 5.0
Slack lets companies manage Slackbot skills from code and CI, not only by hand.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Slack focuses on agents, slackbot skills and block kit.
Slack and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
11. Bandwidth · velocity 5.0
Bandwidth widens its BYOC footprint and lets developers trial messaging without a sales call.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Bandwidth focuses on communications api, byoc and contact center.
Bandwidth and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Bandwidth trajectory → · Compare Dovecot vs Bandwidth →
12. Roundcube · velocity 5.0
Roundcube's October release patches 13 more holes on both branches at once.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Dovecot leans on email infrastructure, imap and security hardening, Roundcube focuses on webmail, security and lts maintenance.
Roundcube and Dovecot have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Roundcube trajectory → · Compare Dovecot vs Roundcube →
Frequently asked questions
What are the best alternatives to Dovecot?
The top Dovecot alternatives we currently track in team communication tools are Rocket.Chat, Stoat, Element, Synapse, Session, ranked by recent ship velocity.
How is this list of Dovecot alternatives ranked?
Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.
Can I compare Dovecot directly with one of these alternatives?
Yes — every card has a "Compare with Dovecot" link to a side-by-side /compare page.