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 soultrader.biz

Found
Selector: default (TXT on default._domainkey.soultrader.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4ZSj4lqcnUAuTO/w71qIYegszSeneiqe6ijN6bEgybG/cBf/Oxs0kC7BeQVuEvfBdv7YTAICtcNS8n86u9sNgDBpMM7f/A94IwhIam+62PjMyxjp0Vi3/PMCEzZ+sbKRgtuMD3rx9564QJMsMLXt5Axt7ST5VT5Qta1lfx5FCflCeSDWYLlbxJZIYLVRZmfXnN5FoMGpZtSnddEFt02LHOd6U393e4yRlNyxrwBA4A4M0YIAFpW+i2aiYKB8AqS8I49b8tP0J1o/QlzEMuq4yp7rVZgCKeM14OJqZNvFeYeZSEnigXD9gYpytaX+QPad33scRjnuzqKmU0BSEB2RPwIDAQAB;

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.