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 housespecial.com
Found
Selector: selector1
(TXT on selector1._domainkey.housespecial.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDIezlAYNnT5rLIQV5Jj6f8xtK032QldEEiExXY1Ev7iJvNjBnngUE62WQnh+IA48jdkyThKJ/7nVoCBQYiiArtbrGD+HgC5WS/c2ky0IownXrPI3HW8FRgziEuNig7aTluCzZg3Bcp5ChJkz3bnCydHbyqKU8EsPdh/mf5T7yOzQIDAQAB;
Selector: selector2
(TXT on selector2._domainkey.housespecial.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA8nnAD6JlN83vzriqS4A1Anf3fvPYTrncZxs4KmX4nmCr/58bEr1xPiXoxQ964f9SABCVFhfHsVFez7jdzjrD3Wr9YoGDOq/MJeKq2Kye9vBto8cRzhB11C7dvxNTaV5EhaWvRpj4P6lNq12RIASQA9qJ8QHZ7snYd4K7e5/m2X7rCYCUYHc4dj9GS7DIJTxQck6/dWd/cJHqI/lXWLck1DXfnhxKPhydP79ts9PJbU77iPqIbzaF3SnVfK3lAY5JiGP2KXja8Ts18VFXkrOyaoSy8qAzn6h41uGyWM8koimnVaa73ka++jYzPJ+xTqYcjgF60XryfVqibwiGPDaO8QIDAQAB;
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.