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Security
Parse raw email headers and explain the Received chain and SPF/DKIM/DMARC results.
Runs entirely in your browser, nothing is uploadedPaste the full header block from “View source” / “Show original” in your mail client. Parsed entirely in your browser; nothing is uploaded.
Look up and explain a domain’s SPF record, mechanism by mechanism.
Open toolLook up and explain a domain’s DMARC policy, tag by tag.
Open toolLook up a domain’s DKIM record for a selector you provide, and explain its tags.
Open tool