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 chatinzone.com
Found
Selector: default
(TXT on default._domainkey.chatinzone.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvOOkMdF2li8tlsSaxRlMZbZOmNVJO55o8/j1+6p5OiCARjOSS4MXNaOYsnZeFZu2d+YyTYBTqh9AOG0iy+n/WFDp9u32ei1X0d1QBfAVfmv/ZIWphwRdWlPejE60HU2bRPEfyHIYt58PkyY0vAttLaFpsKB+wWZrYqxfYh7pvCPvRS7iWFvPAzeW/eLGxca37kXcVGsOZv1xw7SpN6MXU1/Ccjq8eVGzW3OIRMhYepz85dBlPJb0duiXjbLtjrAvBkMNpFfIMDbWrhIf2htaNMlB1ebpHtaeP0HJbOiN2hp2hKzuCkBx7SQNzjlfdj+dYXO8QjN+pnmIISBOn8lGNQIDAQAB;
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.