DKIM Record Checker
DKIM signs outgoing emails. Receivers verify the signature using a public key in DNS.
DKIM lives on <selector>._domainkey.<domain>. If selector is empty, we try common ones.
Result for forbes.com
Found
Selector: selector2
(TXT on selector2._domainkey.forbes.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDH/0HJFfbInbEJZQAhx4JNPR1+DylNU4LzcmdtiAdddEhwwZZowqeFWBaSdZpKvj4oc4iqfO5iL8+AEE80nBcJe2POj5RNkkCvTbtQIhMMjilPdLedcQt6Scmm+BsPNbP7c9QarKNcJhFF0moY1CuE2gtF5vekbqbJZxLoPJeViQIDAQAB;
Selector: google
(TXT on google._domainkey.forbes.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtSWZ52AgrP9UX724e3IQYIgJdGge0M2yg2V5c9plx5Oy6qkX67BOCGBQ8IIWoFplqkSpXenbG42hyC2TaVIaXJtTY8RWL3wHsRLbWlBI7uc+WaVjLxKpeNj5SS128dlEbMgsODDmXg/ZpSd8Oh9+gW9ahcBu2DHLKoeaZWKycjRV4/5J8O1x/wNC+umK76ZJVcif3AMYjZrgKKeUxg0adw7CswrvXyoqLgMET+yufKP48l3CPwVG01ouzavhSwIiJuVCuTlfU4oNpkSBhTZZC4AJ5GiGxk5tbBb8q+3w8pXx8Ntu/soPnvBxwSbzNbS5ZV/F/i19fQDIZgAhiqohcwIDAQAB
FAQ
Why does DKIM require a selector?
Selectors allow rotating keys and running multiple keys per domain.
Where is DKIM published?
TXT on <selector>._domainkey.<domain>.
DKIM record exists but emails still fail DKIM?
Signing may be disabled or the selector used in email differs from DNS.
Do I need DKIM if I have SPF?
Yes, many providers use both for best deliverability and DMARC alignment.
Can I have multiple DKIM selectors?
Yes, that is common for key rotation or multiple senders.
What is DKIM?
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing emails. DNS stores a public key that allows receivers to verify authenticity.
Example
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0B...
Common mistakes
- Wrong selector (the record exists but under a different selector).
- Key is split incorrectly across multiple TXT chunks (some DNS UIs break it).
- Publishing DKIM but not enabling signing on the mail provider.