Sublime Security vs Cloudflare Email Security

Sublime Security9.4Visit Cloudflare Email Security9.0Visit

Higher score Sublime Security #1 in Email Security Gateways 9.4/10 Free plan Free plan✓ 5 of 5 features Try Sublime Security

vs

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

• Sublime Security fits best

  Teams wanting strong value and customization

• Cloudflare Email Security fits best

  Flexible cloud and hybrid deployments

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Side by side

Feature	Sublime Security 9.4/10 Visit ↗	Cloudflare Email Security 9.0/10 Visit ↗
At a glance
Editor score	9.4	9.0
Ranking	#1 in Email Security Gateways	#3 in Email Security Gateways
Best for	Teams wanting strong value and customization	Flexible cloud and hybrid deployments
Pricing model	Free plan + paid	Paid
Starting price	—	—
Free plan	✓ (best)	—
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud
Platforms	Web	Web
Integrations	9 integrations	4 integrations
Features Sublime Security 5/5 · Cloudflare Email Security 5/5
Outbound filtering	✓	✓
Impersonation protection	✓	✓
Malware sandboxing	✓	✓
Microsoft 365 support	✓	✓
Google Workspace support	✓	✓
Specs
Deployment model	Hybrid	Hybrid
Our review
Pros	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	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
Cons	Core is intended for lightweight deployments Advanced controls are reserved for Enterprise Premium support is available with Enterprise	No perpetual free product plan Pricing requires contact with sales and annual contracts Outbound DLP real-time blocking is specified for Microsoft 365
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 →	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 →

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

• 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

• Sublime Security9.4/10 · Free plan

  A customizable email security platform with unusually broad protection in its free Core plan.

  Try Sublime SecurityFull verdict →
• Cloudflare Email Security9.0/10 · Pricing on request

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

  Visit CloudflareFull verdict →