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 nbaatlantictwine.com
Found
Selector: default
(TXT on default._domainkey.nbaatlantictwine.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsq3XkmAST41If+slo+7OWn1R8bBqSrCeP35eZy/X3SwyCwewcFYwvf/UKTkI3JqsM6sf50Q4O3n399GQz2nLOBGKFKPwLnIIiI6sGvt7kBl4iaqlDpGjqmI+QdamdL2efyE4uWpXSSfrzTYqXlOj1c3iT766thltzFEbqZr4AxuA/4zmzQ/s00mJqf2qrVRUcqd5V8/NvOlLBc5u3d9qLnazR+3rfU+0Ddf5temFKH6Ri3fzlp/qW87SdeE+51Cu34bZBYtBM+xYjEBNkkktS8M2voXK+FxyR0y82W7hbp1TrN8gmQR8FyX7T8Bb8/qcQ/yxGu/aM5kmmU/srwYDYQIDAQAB;
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.