Apache SpamAssassin vs Mailprotector

Apache SpamAssassin8.2Visit Mailprotector6.9Visit

Higher score Apache SpamAssassin #2 in Anti-spam Software 8.2/10 Open source ✓ 1 of 5 features Visit SpamAssassin

vs

Mailprotector #7 in Anti-spam Software 6.9/10 Pricing on request ✓ 0 of 5 features Visit Mailprotector

• Apache SpamAssassin fits best

  Teams comfortable managing open-source mail filtering

• Mailprotector fits best

  Microsoft or Google users needing impersonation controls

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Side by side

Feature	Apache SpamAssassin 8.2/10 Visit ↗	Mailprotector 6.9/10 Visit ↗
At a glance
Editor score	8.2	6.9
Ranking	#2 in Anti-spam Software	#7 in Anti-spam Software
Best for	Teams comfortable managing open-source mail filtering	Microsoft or Google users needing impersonation controls
Pricing model	Free	Paid
Starting price	Not published	Not published
Free plan	Not published	Not published
Free trial	—	—
Deployment	Self-hosted	Cloud
Integrations	4 integrations	6 integrations
Features Apache SpamAssassin 1/5 · Mailprotector 0/5
Phishing protection	Not published	Not published
Malware scanning	✓ (best)	Not published
Quarantine controls	Not published	Not published
API access	Not published	Not published
Email continuity	Not published	Not published
Specs
Deployment	Not published	Not published
Users included	Not published	Not published
Our review
Pros	Bayesian, heuristic, DNS blocklist, and collaborative filtering checks Phishing URI, macro, exploit, executable, and attachment detection Integrates with procmail, sendmail, Postfix, and qmail	Filters inbound spam, phishing, and malware, plus outbound messages Detects impersonation and enforces DMARC across supported email environments Quarantine tools include safe previews and one-click release or blocking
Cons	Requires self-hosted deployment and administrator operation Rule and policy configuration demands mail-system expertise Community and documentation support rather than vendor-managed service	Pricing requires contacting sales rather than choosing a published plan Gateway deployment may be more than teams seeking basic spam filtering need Malware sandboxing is not established in the product description
Our verdict	Apache SpamAssassin is an open-source email filtering platform for system administrators who need to classify and tag unsolicited bulk email. It applies heuristic and statistical tests to message headers, body text, and selected MIME… Read the review →	Mailprotector’s CloudFilter is a secure email gateway for managed service providers and the organizations they support. It filters inbound messages for spam, phishing, and malware, and also applies outbound filtering. Microsoft 365 and… Read the review →

Strengths and trade-offs

• Apache SpamAssassin — where it wins

  • Bayesian, heuristic, DNS blocklist, and collaborative filtering checks
  • Phishing URI, macro, exploit, executable, and attachment detection
  • Integrates with procmail, sendmail, Postfix, and qmail

  Where it doesn't

  • Requires self-hosted deployment and administrator operation
  • Rule and policy configuration demands mail-system expertise
  • Community and documentation support rather than vendor-managed service

• Mailprotector — where it wins

  • Filters inbound spam, phishing, and malware, plus outbound messages
  • Detects impersonation and enforces DMARC across supported email environments
  • Quarantine tools include safe previews and one-click release or blocking

  Where it doesn't

  • Pricing requires contacting sales rather than choosing a published plan
  • Gateway deployment may be more than teams seeking basic spam filtering need
  • Malware sandboxing is not established in the product description

• Apache SpamAssassin8.2/10 · Open source

  A configurable, self-hosted filter for teams managing their own mail infrastructure.

  Visit SpamAssassinFull verdict →
• Mailprotector6.9/10 · Pricing on request

  Broad inbound and outbound controls for mixed email environments, with sales-led pricing.

  Visit MailprotectorFull verdict →