Check Point Harmony Email & Collaboration review

Check Point's email product stands out for blocking threats before delivery while still connecting by API. Most API tools pull bad mail out after it lands, but Check Point inspects each message first and can run in monitor mode during evaluation, then move to inline prevention without touching MX records. Detection runs through ThreatCloud AI, which Check Point says combines more than 50 AI engines with behavioral, identity and language analysis and global threat intelligence. Coverage reaches beyond Microsoft 365 and Google Workspace mail to Teams, SharePoint, OneDrive and Slack. It also screens for malicious prompts and hidden instructions aimed at AI assistants such as Copilot and Gemini that read email. The Complete package layers on DLP, DMARC, security awareness training, account takeover protection and archiving. Pricing is quote only and the package matrix takes some reading, but for teams that want one tool across mail and chat with prevention before the inbox, it is a strong fit.

Who it is for

IT teams that want inline blocking through an API deployment and coverage for Teams, Slack, SharePoint and OneDrive from one product.

Price

See vendor pricing (USD check pending).

US price check pending. See the vendor pricing page.

Key features

• Inspects every message before it reaches the inbox, not only after delivery
• ThreatCloud AI with 50+ AI engines plus behavioral, identity and language analysis
• API deployment in minutes with modes from monitor to inline prevention, no MX change
• Protection for Microsoft Teams, SharePoint, OneDrive, Slack and Google Workspace
• Complete package adds DLP, DMARC, security awareness training, account takeover protection and archiving

Strengths and weaknesses

• Strength: Inline prevention through an API connection avoids the post-delivery gap
• Strength: Guards AI assistants such as Copilot and Gemini against malicious prompts hidden in email
• Strength: Broad collaboration coverage beyond the mailbox
• Weakness: No published prices
• Weakness: Packages split email-only and email plus collaboration tiers, which adds quoting steps
• Weakness: Feature breadth means more policy to configure than single-purpose tools

Key facts

• AI engines: 50+
• Organizations protected: 80K+
• Deployment: API with monitor or inline prevention modes
• Free trial: Yes

Where it ranks

Check Point Harmony Email & Collaboration is No. 4 in our Best Email Security Software verdict.