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 proptrader.biz
Found
Selector: google
(TXT on google._domainkey.proptrader.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkoiwSAq41oHuPrC5MOURB2BB9R8E0nqtORcSAcCuI4vVNWHW/Qzk8uhhfqF9WL+hJSKz/8IxQ1nUYnLLd6GnYZqj5JhJiKkXDYUYiVCRsUy+ibrKrqY5uP+Ka68oePn/OQkkBPsbBxmlW3RzBBe3fnnwRixeoPq1ymi4kcqi1pEP1TbPELKMEYPfMDsmo5DKyIbWflKNi2nUAE3z1Vxf0k15jXTXg3RXJMaXS+b2s9Td4sgOIyJtGwkStgl0XXkjQrJ6AjL+zfwi0ogf4wifBjpzK2JGHRSFFjkdWAS2TyI3rWKAtzybujAXJtn6d2m0JKdWnaiGcEO+gIlCySE+4wIDAQAB
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.