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 schothorst.nl
Found
Selector: selector1
(TXT on selector1._domainkey.schothorst.nl)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDnMURahUGpboaLQQVP0f+xo0p+CWHX8CSWOabsPI2yrpbdKY62ambs6FFg3tX0Scx7T9zbwjbGu9cMcb+ncfpVKUhH+g39drZr+67YkZo1NUlL5nLN+nxfuSabeyRQlIHYg4Ihvn8w2nzBYyQ6jAEzC2N0QJmJzXFjOKXD0Zkx5QIDAQAB;
Selector: selector2
(TXT on selector2._domainkey.schothorst.nl)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4GjwteAPmvzNDnkUcFef1qwM9OtrzYURPfRISZ36uwiM9TH6cNxsPmEW5OzTnx4a5pXal380hiMiwHHmBmM4Js0pvq3UZ33aGJ63BVlby03lJhJAtERyTjfsrNYHhLR7qoZ4gtUs2EyGcHJwhmcq0sDPUp33kRp/w08Nuk02m+W3SUf/rsDXDh7tAicqerzRN9xBKkJ5F9DiWJhb9nd3CgJMQinbf3EhXiocQksjdMu3IosUPJr1GxHnIDNhBeXYwnnT5Rsydt9vWy3VsyAbwVilfEtFxrHA/rllyMQeKo0UbC8LAayOM09je+QA1iVOnsi66iTjgsYHc+xd3VIWUQIDAQAB;
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.