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Head-to-head · Email Anti-Spam Software

Rspamd vs Proxmox Mail Gateway

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Rspamd #7 in Email Anti-Spam Software 7.9/10 Free plan Free plan✓ 0 of 3 features Visit Rspamd
Proxmox Mail Gateway #8 in Email Anti-Spam Software 7.9/10 Open source ✓ 0 of 3 features Visit Proxmox

Rspamd leads on 1 check, Proxmox Mail Gateway on 0, and 0 are even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Free planonly Rspamd

Rspamd and Proxmox Mail Gateway score identically on our rubric (7.9 out of 10) for email anti-spam software; Rspamd sits at #7 and Proxmox Mail Gateway at #8 in our editorial ranking, so the choice comes down to fit.

Rspamd offers free plan; Proxmox Mail Gateway doesn't.

Rspamd is the better fit for technical teams building programmable filtering. Proxmox Mail Gateway is the better fit for self-hosted teams wanting a full mail gateway.

  • Rspamd fits best

    Technical teams building programmable filtering

  • Proxmox Mail Gateway fits best

    Self-hosted teams wanting a full mail gateway

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Rspamd 7.9/10 Visit ↗ Proxmox Mail Gateway 7.9/10 Visit ↗
At a glance
Editor score 7.9 7.9
Ranking #7 in Email Anti-Spam Software #8 in Email Anti-Spam Software
Best for Technical teams building programmable filtering Self-hosted teams wanting a full mail gateway
Pricing model Free plan + paid Paid
Starting price £100/mo €190/yr
Free plan ✓ (best) —
Free trial — —
Deployment Desktop, Self-hosted Cloud, Desktop, Self-hosted
Platforms Linux, macOS Web, Linux
Integrations 11 integrations 5 integrations
Features Rspamd 0/3 · Proxmox Mail Gateway 0/3
Phishing detection Not checked yet Not checked yet
Malware scanning Not checked yet Not checked yet
Attachment scanning Not checked yet Not checked yet
Specs
Quarantine access Not checked yet Not checked yet
Supported mail platforms Not checked yet Not checked yet
Quarantine retention Not checked yet Not checked yet
Deployment type Not checked yet Not checked yet
Our review
Pros
  • Open-source scoring with Bayesian and machine learning classification
  • SPF, DKIM, DMARC, phishing, antivirus, and outbound controls
  • HTTP API, Milter, Lua rules, and broad mail-server integrations
  • Scans inbound and outbound mail with SpamAssassin and ClamAV
  • Extensive SMTP filtering, policy rules, quarantine, and mail actions
  • Includes tracking, unified logs, clustering, web, CLI, and API administration
Cons
  • Requires technical administration of rules, protocols, and deployment
  • Scale starts at £100/month for 5K mailboxes
  • Custom configuration may be more than small teams need
  • Requires gateway deployment between the firewall and internal mail server
  • Annual subscriptions are priced per host, starting at €190
  • Support depth varies substantially by subscription tier
Our verdict

Rspamd is an open-source email filtering engine for enterprises, email service providers, hosting providers, and mail-server operators. It analyzes inbound and outbound messages through statistical learning, reputation checks,…

Read the review →

Proxmox Mail Gateway is an open-source mail proxy for organizations that need to inspect and control inbound and outbound email. It sits between a firewall and an internal mail server, analyzing traffic for spam, viruses, Trojans,…

Read the review →
  1. RspamdEmail Anti-Spam Software 7.9Free plan
  2. Proxmox Mail GatewayEmail Anti-Spam Software 7.9Open source

Strengths and trade-offs

  • Rspamd — where it wins

    • Open-source scoring with Bayesian and machine learning classification
    • SPF, DKIM, DMARC, phishing, antivirus, and outbound controls
    • HTTP API, Milter, Lua rules, and broad mail-server integrations

    Where it doesn't

    • Requires technical administration of rules, protocols, and deployment
    • Scale starts at £100/month for 5K mailboxes
    • Custom configuration may be more than small teams need
  • Proxmox Mail Gateway — where it wins

    • Scans inbound and outbound mail with SpamAssassin and ClamAV
    • Extensive SMTP filtering, policy rules, quarantine, and mail actions
    • Includes tracking, unified logs, clustering, web, CLI, and API administration

    Where it doesn't

    • Requires gateway deployment between the firewall and internal mail server
    • Annual subscriptions are priced per host, starting at €190
    • Support depth varies substantially by subscription tier
  • Rspamd7.9/10 · Free plan

    A configurable gateway for teams building spam, phishing, and malware controls.

    Visit RspamdFull verdict →
  • Proxmox Mail Gateway7.9/10 · Open source

    A full mail gateway for teams that want self-hosted scanning, rules, quarantine, and logs.

    Visit ProxmoxFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update