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 kijiji.ca
Found
Selector: google
(TXT on google._domainkey.kijiji.ca)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC0qp7B1GWE/EWWtvu5fYLe/KtyUZxm3LEZEmnJww76ezqqkblZ9byEbj6cFU73cCBChK+yC0PubtF7+6efT+345jyzQ36yI4bzkowejKyBUtvjduV8kZolkqlzYEygtVqdraxLIIHCa9D4oxX++Q63Jb2SF1vlIpFYx2y3d36gIwIDAQAB
Selector: mail
(TXT on mail._domainkey.kijiji.ca)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDAeIVgNQtSPAMBRegijq4Lb8hcaqVHXYHG1b863IvX1fJjVmBJ6dq42LO4mjaVgvFMGPF5dsxMZ7oa6l2UEoEagXSOm+qIFj+MYqOVRXuIiTa1eLi4JBr9TKe4bgQCD0Z9qdvFbqqvTTMvgUvgz4v79ngcxOOd+MB8AlPiVx3niQIDAQAB
Selector: smtp
(TXT on smtp._domainkey.kijiji.ca)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCenqoJfXwkgWJ+BvyPAMKU/T1loDXPHWW13xwUvBsjPRL2b/V1O3wTqnd4ASCOzVeU0POExFSb4CwT4ZLLhPgkl2ywff8fw/IZIo7xLNT6sLMRQgdhbBdfBCdF/bsXVWHgRWudza18eQdElaEM5H/n+EYefTFpJ+WyLqcU9IWq6wIDAQAB
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.