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 aubry.fr
Found
Selector: selector1
(TXT on selector1._domainkey.aubry.fr)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxyJAVkezxCaOJpnck9FwT2hPqEshlruafGFpUkcwwt+Z6jzAdTjmR9UIlWQ+IjlttHaJtiWkzHIJwDTwFDxv50S7IV1plLZwJrBoPTclfIjSnxmthlz1bhUdJV7Bl7iNwgw74GOyUd5Byx+SjqnwONaCDIznB9CkqR5L1GiAcEy6OOQEuDQmT2JTD1/P07RE6sXQhMMJ/fW6nowGs4jKHv+uZrVW1DzvHMs0gA5j6mTV7zW75uGqgU8QhsUOMg4H6eaK+RCutRuL15dPYDA4fQ6xprh+4tO0bphbC7VuqijxdUzoFyvhcUuafgmLiTjVQCuf5MNH4CHs1BaQiCA/0QIDAQAB;
Selector: selector2
(TXT on selector2._domainkey.aubry.fr)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt47lYyjlMfheGMvGqy+iWTV3IaNJz5bEkK1/trTWcvJ7d5xRI90rG5G1Tmexj8BLeaNxNmwnRFNek6zBw59eR/YNx2/A/KLEMLzw6ECJmBncBy1Lju6jKlHyf7hQG2Gzp3gOgotKXfB1iqIF0O9fEOFBfZHFwYUgR9HEeLQmBFLmtRAoMRaLatDZT0Mfw0qsXruFuPjFewCdkZmRUKHxIyATlHjkkuy0l2JImQjfPY2aWRIC6F7rWtrPThfkTI1Ekl9xRbD8YzFd+rzlNJckcVtIoLp7ZYEr6WwK7okAGWYlCaDc/dM5H9mK/q4nLhn0O9kR9C7g/+iQjcy83l7tcQIDAQAB;
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.