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Comparison · Comms
Misskey vs Rspamd
A side-by-side editorial comparison of Misskey and Rspamd — release velocity, themes, recent moves, and the top alternatives to consider.
Misskey vs Rspamd: at a glance
What is Misskey?
Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
Misskey, the ActivityPub social server, shipped 2026.10.0 with a security fix and an HTTP Signatures fix, then 2026.10.1, which moves to Sentry SDK v11 and replaces sendDefaultPii with a dataCollection setting. The 2026.10.2 alpha improves how quote posts from Mastodon and other software display and makes the server stop safely on a bad job-queue config.
What is Rspamd?
Rspamd 4.2 hardens its parsers and ships memory-safety fixes three releases running.
The 4.2 line opened in September with a public suffix lookup replacing the old TLD tables, attachment content extraction for SVG, OOXML and DOCX, and one scheduler over the symbol dependency graph. 4.2.1 fixed critical memory-safety bugs including an HTTP heap overflow. 4.2.2 added wallet-address detection across twelve named currencies and changed MIME digests. 4.2.3 stopped trusting ARC forwarders whose seal fails and merged duplicate RBL queries, so a rule scores once per matched value.
Misskey vs Rspamd: editorial side-by-side
Misskey
5.0COMMS
Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
◆ Current state
Misskey, the ActivityPub social server, shipped 2026.10.0 with a security fix and an HTTP Signatures fix, then 2026.10.1, which moves to Sentry SDK v11 and replaces sendDefaultPii with a dataCollection setting. The 2026.10.2 alpha improves how quote posts from Mastodon and other software display and makes the server stop safely on a bad job-queue config.
◆ Where it's heading
Each version goes through alpha and beta tags before stable, and security fixes appear in most stable releases since 2026.9.0. Federation polish, such as how other servers' quotes and signatures are handled, is the main user-facing thread.
◆ Prediction
Expect 2026.10.2 stable soon after its alpha, carrying the quote display and deck fixes, with 2026.11 alphas following on the monthly cadence.
Rspamd
5.0COMMS
Rspamd 4.2 hardens its parsers and ships memory-safety fixes three releases running.
◆ Current state
The 4.2 line opened in September with a public suffix lookup replacing the old TLD tables, attachment content extraction for SVG, OOXML and DOCX, and one scheduler over the symbol dependency graph. 4.2.1 fixed critical memory-safety bugs including an HTTP heap overflow. 4.2.2 added wallet-address detection across twelve named currencies and changed MIME digests. 4.2.3 stopped trusting ARC forwarders whose seal fails and merged duplicate RBL queries, so a rule scores once per matched value.
◆ Where it's heading
The input-hardening walk from 4.1.x has become line-wide policy: limits on untrusted UCL, bounded PDF and decompression work, and HTML parsing that matches browsers so content cannot hide from the scan. Detection moves the same way, into what attachments and hidden text actually contain. Point releases keep carrying incompatible changes to digests and scoring, so operators need to read the notes on every update.
◆ Prediction
Expect more browser-parity fixes in HTML and URL handling, and attachment extraction beyond the SVG and OOXML set. The planned flip of allow_file_and_shm_inputs to false does not appear in the 4.2 notes, so it remains the breaking change to watch.
Alternatives to Misskey and Rspamd
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 Misskey or Rspamd.
Netcore Cloud
Netcore's blog keeps pitching search-plus-email on one data core, with no product release.
Superhuman
Superhuman gives team admins a console and Enterprise a usage report that counts MCP.
Slack
Slack's CLI now points coding agents to its MCP server and Skills plugin
Synapse
Synapse opens the 1.165 cycle on schedule after two 1.164 patches
Whereby
Whereby folds three months into one digest and still lists nothing specific
See all Misskey alternatives → · See all Rspamd alternatives →
Recent activity from Misskey and Rspamd
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5d agoMisskey2026.10.2 alpha improves quotes from Mastodon
- 12d agoMisskeyMisskey 2026.10.1 changes requirements and Sentry config
- 15d agoRspamd4.2.3: ARC trust fix, merged RBL queries, browser-style HTML parsing
- 16d agoMisskeyMisskey 2026.10.1 alpha.1 pre-release
- 23d agoMisskeyMisskey 2026.10.1 alpha.0 moves to Sentry SDK v11
- 25d agoRspamd4.2.2: crypto wallet detection and changed MIME digests
- 1mo agoRspamd4.2.1: critical HTTP and memory-safety fixes
- 1mo agoMisskeyMisskey 2026.10.0: security and HTTP Signatures fixes
- 1mo agoMisskey2026.9.2 alpha fixes HTTP Signatures query strings
- 1mo agoRspamd4.2.0: public suffix lookup and attachment content extraction
- 2mo agoRspamdCloses an arbitrary file read reachable by any TCP client
- 3mo agoRspamdController accepted any password on a malformed hash
Frequently asked questions
What is the difference between Misskey and Rspamd?
They serve adjacent needs but don't currently overlap on shipped themes. Misskey and Rspamd are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Misskey better than Rspamd?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Misskey and Rspamd are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.
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.
What are the best alternatives to Rspamd?
Top Rspamd alternatives in Comms are ranked by recent ship velocity. Browse the "Rspamd alternatives" section above for the current picks, or visit /alternatives/rspamd for the full list with editorial commentary on each.