Test email analyzer

Verify a real message end-to-end

DNS shows what you've published; a delivered message shows what actually happened. Send a campaign or test to a mailbox you control at Gmail/Yahoo/Outlook, then paste the raw headers here. We'll read the receiver's own Authentication-Results for SPF, DKIM, DMARC, alignment, and one-click unsubscribe.

Where to find raw headers

GmailOpen the message → ⋮ menu → “Show original” → copy everything.

Outlook.comOpen the message → ⋯ → View → View message source.

Yahoo MailOpen the message → ⋯ → View raw message.

Apple MailView → Message → All Headers (or Raw Source).

Establishing signal

Test email analyzer

Verify a real message end-to-end

Where to find raw headers

GmailOpen the message → ⋮ menu → “Show original” → copy everything.

Outlook.comOpen the message → ⋯ → View → View message source.

Yahoo MailOpen the message → ⋯ → View raw message.

Apple MailView → Message → All Headers (or Raw Source).