1 — EML source
Upload the .eml file containing the full message with RFC822 headers.
Paste the entire raw message, including DKIM-Signature header and body. Line endings will be normalized to CRLF automatically.
2 — Source of the DKIM public key
The TXT record at <selector>._domainkey.<domain> will be queried.
Accepts PEM (-----BEGIN PUBLIC KEY-----), DKIM TXT record format (v=DKIM1; p=...) or raw base64 of the SubjectPublicKeyInfo public key.