#email-security

Posts

4 of 4 resources

February 2nd, 2026

DNS lookup tool for email records

Run a DNS lookup to check common email records like TXT, MX, and authentication policies. Use this page to troubleshoot SPF, DKIM, DMARC, BIMI, and routing.

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ResourceDC

February 2nd, 2026

DMARC checker for domain policy and alignment

Run a DMARC checker to validate your DMARC TXT record, policy mode, and reporting configuration. Learn what the results mean and how to fix common errors.

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ResourceSC

February 2nd, 2026

SPF checker for domain email authentication

Run an SPF checker to validate Sender Policy Framework TXT records, authorized senders, and common DNS misconfigurations.

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ResourceDC

February 2nd, 2026

DKIM checker for email signing records

Validate DKIM selectors and DNS TXT values to confirm email signing is configured correctly.

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