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 favsportz.com
Found
Selector: default
(TXT on default._domainkey.favsportz.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0J+1lm9iBeBaF/t4hJif8hqZkvAXZkeKVcW1FCTpWauPQ65wL9WyuRZKO1zKPl2ufjPkFcBlAkb69iRZ4WTbhkeRNQwI8GrC3VI/0mIXkzdV9zmTz5A3QPJc4PoNhhLhdPDzCNZ0gEkT8GGr2ESbQasx92xBHBIjH1P5Ge9wszk4k1FhUlM45BLH0GvbHBV/MTL1EA7q9id34e800u/75pLwHJwQmTS6Mt4KnryE1Ij/AW4dt0vzDS+J7+8AY6/lI2DgK0oM6gO87Jtn8NAXQh0yadjCzggZV30khcdXcKf5Yqah1izZM0SIJn2J08P0+cwqn/zOiaaDxZz0MoxrbQIDAQAB;
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.