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 mariapredelli.com
Found
Selector: default
(TXT on default._domainkey.mariapredelli.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAywyCNvog5l3tzSINQI3i2NvRFjkuvMnbIqOoJ21y6X33xOESmYqsge0cqtwZ4H6efizrgPbVNuuuZiHOO/mLdD5xZMVapBPFW5TjoehwuW0QBWCY6U10L9tQ1e33KmvSDCHVwveTNQ3+PeNpdh8CAc1GLxFP34JGBc3ZTJmLq3sBlIf1YBA0LTr75+O/PrlBh+ccQ2JdtC1sIGxC291RW2bm2t3WRfTBBqdvUr0WbacME4V7eMRpK46gZ1iD1LaoLBMYKiwVz4/x+zcGC5lS+Xzv96b1zt01tf5n6ogtwbumheZwzL2iA9f5d+fopgBqGcHi6kjyLXt1QIkfw4X2QwIDAQAB;
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.