Email Provider Setup Checker
Compare a domain against common Google Workspace or Microsoft 365 record patterns, then detect layered email security services such as Mimecast, Hornetsecurity, Proofpoint, Barracuda, and Sophos.
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How to Tell Which Email Provider a Domain Uses
Learn how to tell whether a domain uses Google Workspace, Microsoft 365, or another mail provider by reading MX, SPF, DKIM, and related DNS patterns.
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Complete guide to Google Workspace DNS records including MX, SPF, DKIM, DMARC, and domain verification. Includes real record examples and setup best practices.
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