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 boylesports.com
Found
Selector: selector1
(TXT on selector1._domainkey.boylesports.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC4O/I8YnvBe9KeXCQXXD1Y4gLe9rmEWVidE+KAa1rmCB1rnPW5eJS2teJEC0+Dll/bBuIMzPbu7aBzf4XMSCn7a7pMlMQJjGHyhFQhXGlwz3fFU703Z4+ZenVnqSh/qT5JhjiPK7EpXdxsa7Rs20dd2/BzgkOzg0gShGf80HHisQIDAQAB; n=1024,1457306512,1473204112
Selector: selector2
(TXT on selector2._domainkey.boylesports.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs7jUUsrfNKQqv3etTe+9NFXBB/X2Qs8LUKHmNa962GTp4tqrtsHL4Yi9NKQtofQW65sDGWE3JUgqfK7oJYRR4AHjsYu/JYj3G8EISIYYp9ZYES7tTScQRw2pS8Nrba7bwzyIsCBa34mHQf1y677SHU1cuQIQY88x0rF0sOSJzWLUnh735X8CmplZ4WLNpDxjbZfrrUd+aAa5x3w8b0YmTfrW1XYf5looHsd2HjOI3N6H5QetI22tSPegvpSpw4BAo6EzYlVta91qVOjHF0wPtVGTRsL7bKO/or/P+2jBMV0J0OZzn/R4IlpLTB7+Brfey/evqipC+fgEoylHgF2AHQIDAQAB;
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.