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Mimecast Secure Email Gateway

Mimecast Secure Email Gateway is a cloud-deployed email security service accessed through the web.

Place
#28 of 35
Score
4.9
Mimecast Secure Email Gateway's website

What Mimecast Secure Email Gateway is

Mimecast Secure Email Gateway is a cloud-deployed email security service accessed through the web. It supports Microsoft 365, Google Workspace, on-premises email, and hybrid email environments. Listed protections include phishing detection, malware scanning, attachment scanning, malware sandboxing, impersonation protection, and outbound filtering, with quarantine access for both users and administrators. Three paid plans are available: Critical, Advanced, and Premium. All include AI-powered business email compromise protection, advanced attachment sandboxing and detection, malware scanning, spam filtering, and outbound and internal email scanning. Critical adds email continuity, Advanced adds data protection, and Premium adds collaboration-tool protection. Pricing is on request, and there is no free plan. Mimecast was founded in 2003 and is headquartered in London, United Kingdom. The cloud gateway model provides one listed deployment approach for supported mail systems.

Good

  • Phishing and malware detection
  • Attachment sandboxing
  • Impersonation protection
  • User and administrator quarantine access
  • Supports major and hybrid mail environments

Watch out

  • No free plan
  • Pricing is available on request
  • Cloud deployment is the listed model
  • Plan additions differ by tier

Who it suits

This suits organizations securing Microsoft 365, Google Workspace, on-premises, or hybrid email. Buyers can choose among plans based on continuity, data protection, or collaboration-tool protection needs.

Verdict

Mimecast Secure Email Gateway covers common email threats across cloud, on-premises, and hybrid environments. Compare the three plans' added protections and request pricing for your deployment.

Plans and prices

From Mimecast Secure Email Gateway's own pricing page, checked 20 Sep 2026.

All about pricing
PlanPriceWhat it gives you
CriticalPriced on requestAI-powered BEC protection · Advanced attachment sandboxing and detection · Malware scanning · Spam filtering · Outbound and internal email scanning · Email continuity
AdvancedPriced on requestAI-powered BEC protection · Advanced attachment sandboxing and detection · Malware scanning · Spam filtering · Outbound and internal email scanning · Data protection
PremiumPriced on requestAI-powered BEC protection · Advanced attachment sandboxing and detection · Malware scanning · Spam filtering · Outbound and internal email scanning · Collaboration-tool protection

The facts

Each one read from Mimecast Secure Email Gateway's own pages, with the date it was checked.

The company

Founded
2003checked 23 Sep 2026
Headquarters
London, United Kingdomchecked 23 Sep 2026

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