Attic M365 FREE vs Valimail Monitor: Side-by-Side Comparison (2026)

Attic M365 FREE: Protects Microsoft 365 users from phishing attacks using fake login pages. built by Attic Security. Core capabilities include Real-time detection of fake Microsoft 365 login pages, Red alarm screen warning when accessing fraudulent pages, Authenticity seal display on official Microsoft 365 login pages..

Valimail Monitor: Free DMARC monitoring tool for identifying email senders and authentication status. built by Valimail. Core capabilities include Identification of email sending services by name, DMARC pass/fail status monitoring, SPF and DKIM alignment tracking..

Both serve the Anti-Phishing market but differ in approach, feature depth, and target audience.

Attic M365 FREE differentiates with Real-time detection of fake Microsoft 365 login pages, Red alarm screen warning when accessing fraudulent pages, Authenticity seal display on official Microsoft 365 login pages. Valimail Monitor differentiates with Identification of email sending services by name, DMARC pass/fail status monitoring, SPF and DKIM alignment tracking.

Attic M365 FREE is developed by Attic Security. Valimail Monitor is developed by Valimail. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Attic M365 FREE and Valimail Monitor serve similar Anti-Phishing use cases: both are Anti-Phishing tools. Review the feature comparison above to determine which fits your requirements.