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 playojo.com
Found
Selector: selector1
(TXT on selector1._domainkey.playojo.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxUV+l9WMoxMKZJFAVdbbzkVS5YEaXieDV1BntLLTYioCgEGsXds8oBwo7XfcUqBVba/adNCQoZ5S+4o4BNM0XHZNxWtAw/F1eP18JsMBTl3FZa0DHnIdgOw4hA5OV2zr6pXDeVb7W8x6VGS56UReIxZP3cRRN7D2c/4+FPUCdSIOj7P5ibjpgLjxEsXOrvQ7ZsO/2Xd9Q4QjXRN3rAE3kP0cTu5oegMm7LPvnhv/uecJIgdAg2SH0xfWgm1mhcmBrbG/lW6RAoxdLBH5Xy7s7wAJwqOMt+PX0RgjQOBP5pY45IRnT4hwasQA3lLl8U7PTWUsCDxdTaisb48084hIzQIDAQAB;
Selector: mail
(TXT on mail._domainkey.playojo.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC2VINHyXi6QCilER2T+bBi9V15kcI/ax68mJYAy0GDgwrHIP1b4W5dgdBmyEL8yN2eBl6yA6lW/6Ksgm/tQLp0w+IdIfPHayAcH7xjIrv5SmuM/qYhLUQ7pLDJzYDZcKmstIacYBv0h/+m5Vu3fEBMPGinbxk7Xaz16Gu8WSpkjwIDAQAB
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.