Postmark
Postmark adds its own SOC 2 Type 2 report to a run of security work.
Comparison · Comms
Gromox vs Misskey
A side-by-side editorial comparison of Gromox and Misskey — release velocity, themes, recent moves, and the top alternatives to consider.
Gromox vs Misskey: at a glance
What is Gromox?
Gromox 3.13 adds scripts to move Exchange-for-All systems onto it.
Gromox ships a numbered release roughly monthly. 3.13 adds scripts to convert E4A systems to Gromox, full two-way sync of IMAP keywords with MAPI categories, multi-message vCard export and audit logging in emsmdb and zcore, and fixes an EWS gap where any user could answer, alter or move meeting requests in other mailboxes. 3.12 moved MAPI-to-internet conversion onto VMIME with RFC 2231 filenames; 3.11 added IMAP FETCH BINARY and Sent Items copies for send-as and send-on-behalf on shared mailboxes.
What is Misskey?
Misskey's next release cuts server memory by up to 140MB with a new start script.
Misskey, the ActivityPub social server, follows a monthly alpha-to-release cycle. The 2026.11.0 alpha adds a production start script, node ./scripts/start.mjs, that avoids leftover resident processes and cuts memory use by 70 to 140MB; official Docker images use it automatically. It also carries the improved display of quote posts from Mastodon and other software, plus a batch of deck, chat and push-notification fixes. October's 2026.10.1 moved to Sentry SDK v11.
Gromox vs Misskey: editorial side-by-side
Gromox
2.5COMMS
Gromox 3.13 adds scripts to move Exchange-for-All systems onto it.
◆ Current state
Gromox ships a numbered release roughly monthly. 3.13 adds scripts to convert E4A systems to Gromox, full two-way sync of IMAP keywords with MAPI categories, multi-message vCard export and audit logging in emsmdb and zcore, and fixes an EWS gap where any user could answer, alter or move meeting requests in other mailboxes. 3.12 moved MAPI-to-internet conversion onto VMIME with RFC 2231 filenames; 3.11 added IMAP FETCH BINARY and Sent Items copies for send-as and send-on-behalf on shared mailboxes.
◆ Where it's heading
The project keeps completing Exchange behaviour for clients that expect it, now including shared-mailbox Sent Items and meeting handling that matches Exchange. 3.13's conversion scripts and audit logging point at migration and compliance as the adoption path, alongside the IMAP work that has run since 3.8. Permission checks on EWS calendar operations show the protocol surface now gets security review, not only coverage.
◆ Prediction
Expect more EWS permission and behaviour corrections and continued IMAP4rev2 coverage; the E4A scripts suggest further migration tooling from other groupware.
Misskey
5.0COMMS
Misskey's next release cuts server memory by up to 140MB with a new start script.
◆ Current state
Misskey, the ActivityPub social server, follows a monthly alpha-to-release cycle. The 2026.11.0 alpha adds a production start script, node ./scripts/start.mjs, that avoids leftover resident processes and cuts memory use by 70 to 140MB; official Docker images use it automatically. It also carries the improved display of quote posts from Mastodon and other software, plus a batch of deck, chat and push-notification fixes. October's 2026.10.1 moved to Sentry SDK v11.
◆ Where it's heading
Recent releases lean on operator concerns: security fixes, Sentry configuration, safe startup on bad queue config, and now memory footprint. Federation polish with non-Misskey software continues alongside, which matters for smaller self-hosted instances.
◆ Prediction
2026.11.0 is likely to go final within weeks carrying the start script, following the pattern of alphas reaching release in two to three weeks. Further memory or query-reduction work looks likely given the server fixes trimming unneeded user-data lookups.
Alternatives to Gromox and Misskey
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 Gromox or Misskey.
Element X Android
Element X Android turns on multi-select forwarding and better search in v26.11.0.
Fonoster
Fonoster lets voice agents pick Anthropic, Google or Groq models and record calls with one switch.
Salesmsg
Salesmsg's Sherpa AI now sends replies and builds broadcasts on request, with approval first.
Proton Bridge
Proton Bridge v3.27.2 adds support for the oo7 keyring on Linux.
Netcore Cloud
Netcore keeps publishing unified-platform explainers with no product release.
See all Gromox alternatives → · See all Misskey alternatives →
Recent activity from Gromox and Misskey
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoMisskeyMisskey 2026.11 alpha cuts memory use by up to 140MB
- 9d agoMisskey2026.10.2 alpha improves quotes from Mastodon
- 11d agoGromoxGromox 3.13
- 17d agoMisskeyMisskey 2026.10.1 changes requirements and Sentry config
- 20d agoMisskeyMisskey 2026.10.1 alpha.1 pre-release
- 27d agoMisskeyMisskey 2026.10.1 alpha.0 moves to Sentry SDK v11
- 1mo agoGromoxGromox 3.12
- 1mo agoMisskeyMisskey 2026.10.0: security and HTTP Signatures fixes
- 1mo agoGromoxGromox 3.11
- 2mo agoGromox3.10 makes IMAP flags durable and teaches EWS Outlook for Mac's drafts
- 3mo agoGromox3.9 makes room bookings and EWS meetings properly actionable
- 4mo agoGromox3.8 splits the Information Store per store and extends IMAP
Frequently asked questions
What is the difference between Gromox and Misskey?
They serve adjacent needs but don't currently overlap on shipped themes. Misskey 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 Gromox better than Misskey?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Misskey 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 Gromox?
Top Gromox alternatives in Comms are ranked by recent ship velocity. Browse the "Gromox alternatives" section above for the current picks, or visit /alternatives/gromox for the full list with editorial commentary on each.
What are the best alternatives to Misskey?
Top Misskey alternatives in Comms are ranked by recent ship velocity. Browse the "Misskey alternatives" section above for the current picks, or visit /alternatives/misskey for the full list with editorial commentary on each.