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grommunio vs Rspamd

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

grommunio vs Rspamd: at a glance

FeaturegrommunioRspamd
SectorCommsComms
Velocity score0.05.0
Sparks · 30d00
Top themesgroupware, self-hosted-email, release-notes, pointer-feedspam filtering, email authentication, input hardening, attachment extraction
Last editorial update11d ago4h ago
WebsiteVisit →Visit →

What is grommunio?

grommunio's feed publishes release pointers only; the changes themselves live on GitHub.

The crawled feed carries release-note stubs from 2022 to 2026, each the same sentence pointing to GitHub for the detailed logs. 2026.06.2 is the newest, published at the end of September. Nothing in the feed states what changed in any release.

Read the full grommunio trajectory →

What is Rspamd?

Rspamd 4.3 fixes SPF evaluation order and rejects weak DKIM keys, with results that change.

Rspamd 4.3.0 on November 13 is a correctness release with a long incompatible-changes list. SPF records are now evaluated in term order, closing a case where an explicit -ip4 deny could be overridden by a broader allow. DKIM rejects RSA keys under 1024 bits and signatures with duplicate tags, DMARC no longer drops a policy over an unknown tag, URL mismatches are scored apart from phishing, and PDF text extraction and archive unpacking change their output. Critical fixes cover a header line that could abort a worker from one unauthenticated HTTP request.

Read the full Rspamd trajectory →

grommunio vs Rspamd: editorial side-by-side

G0.0

grommunio's feed publishes release pointers only; the changes themselves live on GitHub.

◆ Current state

The crawled feed carries release-note stubs from 2022 to 2026, each the same sentence pointing to GitHub for the detailed logs. 2026.06.2 is the newest, published at the end of September. Nothing in the feed states what changed in any release.

◆ Where it's heading

The only signal available is cadence, and it is thin and irregular: twelve published notes across roughly five years, with 2023.11.x, 2025.01.x and 2026.06.1 as the visible markers. That is a release-notes page maintained as an index rather than a changelog. Reading direction from grommunio would require the GitHub logs these notes point at.

◆ Prediction

Expect the next entry to be another dated pointer of the same form. Whether grommunio's real release cadence matches this feed cannot be determined from what is published here.

R
Rspamd
COMMS
5.0

Rspamd 4.3 fixes SPF evaluation order and rejects weak DKIM keys, with results that change.

◆ Current state

Rspamd 4.3.0 on November 13 is a correctness release with a long incompatible-changes list. SPF records are now evaluated in term order, closing a case where an explicit -ip4 deny could be overridden by a broader allow. DKIM rejects RSA keys under 1024 bits and signatures with duplicate tags, DMARC no longer drops a policy over an unknown tag, URL mismatches are scored apart from phishing, and PDF text extraction and archive unpacking change their output. Critical fixes cover a header line that could abort a worker from one unauthenticated HTTP request.

◆ Where it's heading

Since 4.1, every release has hardened parsers and closed memory-safety and trust gaps; 4.3 applies the same pass to the authentication standards themselves (SPF, DKIM, DMARC, ARC) and to content extraction. Operators should expect scores and fuzzy hashes to shift after upgrading, because the project now favours spec-correct results over backward-compatible ones.

◆ Prediction

A 4.3.x point release fixing regressions from these behaviour changes is the likely next step, as 4.2.1 followed 4.2.0 within two weeks.

Alternatives to grommunio 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 grommunio or Rspamd.

See all grommunio alternatives → · See all Rspamd alternatives →

Recent activity from grommunio and Rspamd

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

  1. 22h agoRspamd4.3.0: SPF order fix, stricter DKIM, new truncation symbols
  2. 24d agoRspamd4.2.3: ARC trust fix, merged RBL queries, browser-style HTML parsing
  3. 1mo agoRspamd4.2.2: crypto wallet detection and changed MIME digests
  4. 1mo agoRspamd4.2.1: critical HTTP and memory-safety fixes
  5. 1mo agogrommunioRelease Notes 2026.06.2
  6. 1mo agoRspamd4.2.0: public suffix lookup and attachment content extraction
  7. 3mo agoRspamdCloses an arbitrary file read reachable by any TCP client
  8. 4mo agogrommunioRelease Notes 2026.06.1
  9. 1y agogrommunioRelease Notes 2025.01.2
  10. 1y agogrommunioRelease Notes 2025.01.1
  11. 2y agogrommunioRelease Notes 2023.11.3
  12. 2y agogrommunioRelease Notes 2023.11.2

Frequently asked questions

What is the difference between grommunio and Rspamd?

They serve adjacent needs but don't currently overlap on shipped themes. Rspamd 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 grommunio better than Rspamd?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Rspamd 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 grommunio?

Top grommunio alternatives in Comms are ranked by recent ship velocity. Browse the "grommunio alternatives" section above for the current picks, or visit /alternatives/grommunio 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.