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 lowes.com
Found
Selector: default
(TXT on default._domainkey.lowes.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDXBCDfVTQvDPBdB8OwibcncXf6ouM83kdxZxcSeiiezp6H39Tj5rH2K1OGsQuc7FDUk4lScbSTg8YYBUdPLf07xKMxAE2Ydy/EegzL559c1LnsG6t1eb2vFyj3BC42s6wZKPLXuofpVkKQJUuNZaEVuJ/n0JVeSTlvjq40cSEcoQIDAQAB
Selector: selector1
(TXT on selector1._domainkey.lowes.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDcd/RUsMRiTgU4CmJTzini4ug+FHhgjiGAr9pXmpOIjAG/cgWhgr30wqhk+XExtmQRCDLCRRpGK0Xqh9YBoFo8DSmPfm+yeCqqBwnnfjV22jjQ4yiOfCDfvgsjThqqLnnWfSODuDdkCn+iO6gsf8uL5zsuA8ZwNWrtQ3U5Kvue4QIDAQAB;
Selector: selector2
(TXT on selector2._domainkey.lowes.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1QPq8mRHfuOiK4dtemO27+67y0n1KhPODznWT5ZRSvm0w4wGQJqnfTkY1yUqbGKXwoB81SduZxHb/c2wcnhntRTEROkCF4eUOyCDUZb6rsNMETyobq3/I1jc9WqKg03Wf/Q+4AdJeauYMrBR9QEbZU6ocxbsCJNa21BVl9FU+8IUr8LLvcw+AqWtL+7OX4KDD33ul9NTnzLcIOXZ07c3pGHd6W5Gu6RoJieuSWQARS2YRzKnOOgCvtx6G0jfl8g5yuqhFPcB6d2HYl2/+ih6bnpRYrbfbeuknKKObqAYkN1IDRp0+fgq6gNkNFP9w1XHaqXB/UwtSzO6Krsx4hpMJQIDAQAB;
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.