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DKIM Checker
Check your DomainKeys Identified Mail configuration across 10 common selectors. Verifies that your emails are cryptographically signed and can be authenticated by recipients.
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What is DKIM?
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to your outgoing emails. This lets recipient mail servers verify that the email actually came from your domain and hasn't been tampered with in transit.
We check 10 common DKIM selectors (default, google, selector1, selector2, and others) to find any active signing keys on your domain.