Cloudflare Email Security vs Mimecast Secure Email Gateway

Cloudflare Email Security9.0Visit Mimecast Secure Email Gateway8.7Visit

Higher score Cloudflare Email Security #3 in Email Security Gateways 9.0/10 Pricing on request ✓ 5 of 5 features Visit Cloudflare

vs

Mimecast Secure Email Gateway #6 in Email Security Gateways 8.7/10 Pricing on request ✓ 5 of 5 features Visit Mimecast

• Cloudflare Email Security fits best

  Flexible cloud and hybrid deployments

• Mimecast Secure Email Gateway fits best

  Mature all-around email protection

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Side by side

Feature	Cloudflare Email Security 9.0/10 Visit ↗	Mimecast Secure Email Gateway 8.7/10 Visit ↗
At a glance
Editor score	9.0	8.7
Ranking	#3 in Email Security Gateways	#6 in Email Security Gateways
Best for	Flexible cloud and hybrid deployments	Mature all-around email protection
Pricing model	Paid	Paid
Starting price	—	—
Free plan	—	—
Free trial	—	—
Deployment	Cloud	Cloud
Platforms	Web	Web
Integrations	4 integrations	5 integrations
Features Cloudflare Email Security 5/5 · Mimecast Secure Email Gateway 5/5
Outbound filtering	✓	✓
Impersonation protection	✓	✓
Malware sandboxing	✓	✓
Microsoft 365 support	✓	✓
Google Workspace support	✓	✓
Specs
Deployment model	Hybrid	Cloud
Our review
Pros	Supports inline MX, API, BCC, journaling, and mixed-mode deployment Combines phishing, BEC, impersonation, link, and attachment controls Adds post-delivery remediation and outbound DLP for Microsoft 365	Scans inbound, outbound, and internal email Combines BEC protection, sandboxing, URL analysis, and DLP Integrates with Microsoft 365, Google Workspace, and security platforms
Cons	No perpetual free product plan Pricing requires contact with sales and annual contracts Outbound DLP real-time blocking is specified for Microsoft 365	Pricing requires contact with sales No free plan is offered Its broad control set may exceed simpler email-security needs
Our verdict	Cloudflare Email Security is a cloud-native email protection platform for organizations using Microsoft 365, Google Workspace, or other mail providers. It covers inbound phishing, malware, business email compromise, spoofing, spam,… Read the review →	Mimecast Secure Email Gateway is a cloud-based email security service for organizations using Microsoft 365, Google Workspace, on-premises, or hybrid email environments. It inspects inbound, outbound, and internal messages with layered… Read the review →

Strengths and trade-offs

• Cloudflare Email Security — where it wins

  • Supports inline MX, API, BCC, journaling, and mixed-mode deployment
  • Combines phishing, BEC, impersonation, link, and attachment controls
  • Adds post-delivery remediation and outbound DLP for Microsoft 365

  Where it doesn't

  • No perpetual free product plan
  • Pricing requires contact with sales and annual contracts
  • Outbound DLP real-time blocking is specified for Microsoft 365

• Mimecast Secure Email Gateway — where it wins

  • Scans inbound, outbound, and internal email
  • Combines BEC protection, sandboxing, URL analysis, and DLP
  • Integrates with Microsoft 365, Google Workspace, and security platforms

  Where it doesn't

  • Pricing requires contact with sales
  • No free plan is offered
  • Its broad control set may exceed simpler email-security needs

• Cloudflare Email Security9.0/10 · Pricing on request

  A flexible email gateway for organizations needing layered inbound and outbound protection.

  Visit CloudflareFull verdict →
• Mimecast Secure Email Gateway8.7/10 · Pricing on request

  A broad email security gateway for organizations needing layered protection and policy control.

  Visit MimecastFull verdict →