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 e-sirket.biz
Found
Selector: smtp
(TXT on smtp._domainkey.e-sirket.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvSSRa2yZZECmQQSr5ausN6V9d5Q0/QQ03JW+PczUQRw+50EsgyW2Jw5CJwdylExZpdg6mtuUoeQgUGfJuTPwtfSgjxfsvVKBC2o2K1U6PIFJ4VulSATA4GbpvGJFBThq1JCy4W37FtmYqCUTAUlbX89w/lRFQGe1trmHzNy+L+KtSDG5XiSTmhzohVO//X6Pe CgwRiLrm7Iyo7529tL6WzTNp2c5fR/2ROgkz66kERQVIbbpSbuO2uFLUsc/HBx7/iumsu2wP6tCBOeWbuT/7efIYI4KMGfTl2mRlPO/3TGH6l0M/74uShrHE8ROm6K2I9++Bu4TN15TcNrXIngMuQIDAQAB
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.