Head-to-head · Email Security Gateways
Sublime Security vs FortiMail Email Security
Sublime Security leads on 0 checks, FortiMail Email Security on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreSublime Security · 9.4/10
- Free planonly Sublime Security
Sublime Security scores higher on our rubric for email security gateways: 9.4 against 8.2 out of 10; our editors rank them #1 and #11.
Sublime Security is the better fit for teams wanting strong value and customization. FortiMail Email Security is the better fit for fortinet-centered security environments.
- Sublime Security fits best
Teams wanting strong value and customization
- FortiMail Email Security fits best
Fortinet-centered security environments
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Side by side
| Feature | Sublime Security 9.4/10 Visit ↗ | FortiMail Email Security 8.2/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 8.2 |
| Ranking | #1 in Email Security Gateways | #11 in Email Security Gateways |
| Best for | Teams wanting strong value and customization | Fortinet-centered security environments |
| Pricing model | Free plan + paid | Paid |
| Starting price | — | Pricing on request |
| Free plan | ✓ (best) | Not checked yet |
| Free trial | — | — |
| Deployment | Cloud, Self-hosted | Self-hosted |
| Integrations | 9 integrations | 6 integrations |
| Features Sublime Security 5/5 · FortiMail Email Security 5/5 | ||
| Outbound filtering | ✓ | ✓ |
| Impersonation protection | ✓ | ✓ |
| Malware sandboxing | ✓ | ✓ |
| Microsoft 365 support | ✓ | ✓ |
| Google Workspace support | ✓ | ✓ |
| Specs | ||
| Deployment model | Hybrid | Hybrid |
| Our review | ||
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| Our verdict | Sublime Security is an AI-powered email security platform for organizations using Microsoft 365, Google Workspace, IMAP, or direct APIs. It covers phishing, business email compromise, malware, impersonation, spam, and policy violations,… Read the review → |
FortiMail Email Security is Fortinet’s email protection platform for organizations managing inbound and outbound email threats across on-premises, cloud, or hybrid environments. It combines malware and spam protection with impersonation… Read the review → |
Strengths and trade-offs
Sublime Security — where it wins
- Free Core plan includes AI detection and response features
- Detects impersonation, malware, phishing, and policy violations
- Supports Microsoft 365, Google Workspace, APIs, SIEM/SOAR, and CrowdStrike
Where it doesn't
- Core is intended for lightweight deployments
- Advanced controls are reserved for Enterprise
- Premium support is available with Enterprise
FortiMail Email Security — where it wins
- Protects inbound and outbound email against malware, spam, and impersonation
- Combines DLP, encryption, sandboxing, clawback, quarantine, and reporting
- Integrates with Microsoft 365, Google Workspace, and Fortinet Security Fabric
Where it doesn't
- Pricing requires contact with sales
- The broad feature set may exceed narrower email security needs
- Some deployment options require alignment with Fortinet infrastructure
- Sublime Security9.4/10 · Free plan
A customizable email security platform with unusually broad protection in its free Core plan.
Try Sublime SecurityFull verdict → - FortiMail Email Security8.2/10 · Pricing on request
A broad email security platform suited to Fortinet-centered hybrid environments.
Visit FortinetFull verdict →
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All email security gateways comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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