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Check DMARC for up to 200 domains

Paste your domains, one per line or comma-separated. For each one we check DMARC, SPF and MX, and show where someone could send email as you. Free, no signup.

We look for DKIM keys at 70+ common selectors and the ones your SPF points to, for checks of up to 25 domains. If your provider uses a custom selector, add it here, for example s259443 from s259443._domainkey.

Checking an email's wording? Try our free spam word checker.

We only read public DNS records. Results are kept for 24 hours at a private link and are not indexed.