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 exposingthefalungong.org
Found
Selector: default
(TXT on default._domainkey.exposingthefalungong.org)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3TqGW0PSVZuk/I/uBe9gTx5lBjLB5+Y+Y8sO38GXmMVqKrGKTnmbRfiNunj8V4YVBWjbpQ07jPo0HOWqk5z5HMJrYcHkETPuMuRVj5TGawBCWO4+/uZ+1IgusCbqotdvwjF+6Rh11iKTIavkOi8XrTuXt6rODrYJNL9RSbWG3lQBslsq3BP2wa4KGaurWOnHIIK0mF7f3w+OAgZ3osHMc0knP2q8fiN8EWUL0O4xzeqVB9SMqtYo8VvJPE8Wxzl2Ts8YzaEjKVEjdTblxCzbI1eNoN7U2Pvx496Z6MyG/w/hzTolpdLN+RNe9xmj8hHhBpotW1lU9hcTQpranII6swIDAQAB;
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.