Compare products
GreatHorn vs Valimail
Offer
No offer right now
No offer right now
Focus
Email Security
Email Security
Product
Cloud-native email security for Microsoft 365 and Google Workspace using relationship analytics to stop spear phishing and BEC.
Automated email authentication platform enabling zero-trust DMARC enforcement, BIMI implementation, and phishing prevention for enterprise senders.
Headquarters
Waltham, Massachusetts
San Francisco, California
Company size
51-200 employees
51-200 employees
Free options
Free plan, Free trial
Source updated
Oct 29, 2026
Nov 2, 2026
Capabilities
Plan capabilities
Integrations
Buyer fit
Best for
Company size
Security and switching
Security reviews
Security and migration
Case studies and sources
Case studies
Customer evidence
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Email Security
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