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 wsj.com
Found
Selector: selector2
(TXT on selector2._domainkey.wsj.com)
v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAngDZ+OLa8LW3fdcSS3tTMuK1R428kZs1COYx7kNOuiLIXogABfhoM28kCR3/ZJlKyzRDdLTEn/sHN49rXHbujVPEjDgWLOeMo/ozA4ZiPeX/MVkukoN12rBL0FWDQcAUI77/RqjxaJKCDj1qr2lDrv0/cdOMnXR7lzvD+ulZhZTgrUYR8jHvjxRY0ME9iF0ON4VMiclsAVdXcDiZnvDkFwkj5YrLNTdF6jCQWVtihPuFCBHoH9jPwgn6TeyiEZFXch1ido6+VASdHq/40x0K6wyjhKEMxdsGMkE4Yr7OAfvov3/ITsgPoV3edlLMwqxhXPM0lictv5IGKejhIkJ/8wIDAQAB;
Selector: google
(TXT on google._domainkey.wsj.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC/TBI/mOwv05TRIJ6zqmJbHx2lL8jGgbKjUasBCwuY4RLwysp1+WCao0kEOR9xKDj0ckFptc/6NajFmAydRL41Y9Lk51AU+jqv9aIKk6I9pOi2hJ/+//gb4Zc1PW7nW04PGDRBkdLM2uA+KGzKY0I0sQzOX52KcJabJYtGVU3k5QIDAQAB
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.