Attic M365 FREE is a commercial anti-phishing tool by Attic Security. Valimail Monitor is a commercial anti-phishing tool by Valimail. Compare features, ratings, integrations, and community reviews side by side to find the best anti-phishing fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Startup and SMB security teams protecting Microsoft 365 will benefit most from Attic M365 FREE because it stops AiTM phishing attacks that bypass MFA, the attack class traditional email filters miss entirely. The tool deploys in five minutes with no payment required, making it immediately useful for resource-constrained teams, and its real-time detection of fake login pages covers both NIST PR.AA and DE.CM functions simultaneously. Skip this if your organization needs protection beyond Microsoft 365 or runs a heterogeneous SaaS stack; Attic is deliberately focused on one platform and one threat vector.
Organizations managing email authentication across multiple domains or third-party senders need Valimail Monitor to stop spoofing before it reaches inboxes; the tool excels at discovering unauthorized sending services and tracking SPF/DKIM alignment in real time, which catches the bulk of phishing infrastructure that traditional firewalls miss. The free tier with full DMARC monitoring and real-time enforcement visibility means you can pilot domain-wide without procurement friction. This is built for teams with fragmented email stacks or shadow IT sending problems, not for buyers seeking a unified platform that handles incident response or remediation automation alongside detection.
Protects Microsoft 365 users from phishing attacks using fake login pages
Free DMARC monitoring tool for identifying email senders and authentication status
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Common questions about comparing Attic M365 FREE vs Valimail Monitor for your anti-phishing needs.
Attic M365 FREE: Protects Microsoft 365 users from phishing attacks using fake login pages. built by Attic Security. headquartered in Netherlands. 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. headquartered in United States. 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.
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