Head-to-head · Anti-spam Software
Rspamd vs Mailprotector
Rspamd leads on 1 check, Mailprotector 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
- Highest scoreRspamd · 8.9/10
- Free planonly Rspamd
Rspamd scores higher on our rubric for anti-spam software: 8.9 against 6.9 out of 10; our editors rank them #1 and #7.
Rspamd offers free plan; Mailprotector doesn't publish it.
Rspamd is the better fit for admins wanting configurable, open-source gateway filtering. Mailprotector is the better fit for microsoft or Google users needing impersonation controls.
- Rspamd fits best
Admins wanting configurable, open-source gateway filtering
- Mailprotector fits best
Microsoft or Google users needing impersonation controls
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Side by side
| Feature | Rspamd 8.9/10 Visit ↗ | Mailprotector 6.9/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.9 | 6.9 |
| Ranking | #1 in Anti-spam Software | #7 in Anti-spam Software |
| Best for | Admins wanting configurable, open-source gateway filtering | Microsoft or Google users needing impersonation controls |
| Pricing model | Free plan + paid | Paid |
| Starting price | Not published | Not published |
| Free plan | ✓ (best) | Not published |
| Free trial | — | — |
| Deployment | Desktop, Self-hosted | Cloud |
| Platforms | Linux, macOS | Web |
| Integrations | 11 integrations | 6 integrations |
| Features Rspamd 0/5 · Mailprotector 0/5 | ||
| Phishing protection | Not published | Not published |
| Malware scanning | Not published | 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 |
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| Cons |
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| 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 with statistical learning, reputation data, authentication… 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
Rspamd — where it wins
- Open-source filtering with Bayesian classification and machine learning
- Validates SPF, DKIM, and DMARC while detecting phishing URLs
- Integrates with major mail transfer agents through HTTP or Milter
Where it doesn't
- Paid Scale access starts at £100/month for 5K mailboxes
- Gateway deployment demands responsibility for mail infrastructure
- Advanced Lua rules and configurable scoring add administration work
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
- Rspamd8.9/10 · Free plan · paid from £100/mo
Configurable gateway filtering with machine learning and broad mail-server integration.
Visit RspamdFull verdict → - Mailprotector6.9/10 · Pricing on request
Broad inbound and outbound controls for mixed email environments, with sales-led pricing.
Visit MailprotectorFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
Last updated · How we research and update





