DKIM2 Public

RFC 5322 validator

Verification against supplied envelope

This website does not observe an SMTP delivery. It verifies only the message representation and envelope values supplied below.

Enter explicit RFC 5321 envelope values. They are not inferred from message headers.

paste-normalized: line boundaries are normalized once to CRLF. This cannot prove byte identity with a mailbox copy.

file-exact: accepted file bytes are verified unchanged. Choose exactly one input mode.