DKIM Checker
Check a DKIM key.
Retrieve a domain's DKIM public key for a given selector and verify it's published.
What is a DKIM record?
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing email. The matching public key is published in DNS at selector._domainkey.yourdomain.com, where the selector is chosen by your mail provider. Receiving servers use it to confirm the message really came from your domain and wasn't altered in transit.
DKIM works together with SPF and DMARC to protect your domain from spoofing.
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