Header analysis

Upload an email file or paste its headers to see the servers it passed through, the delays and whether it passed SPF, DKIM and DMARC. Analysis runs in your browser; nothing is uploaded.

Drop an email file here or

.eml, .msg (Outlook), .emlx, .mbox, .ics or .txt, up to 25 MB. Read in your browser, never uploaded.

or paste the headers

In Gmail: ⋮ → Show original. In Outlook: File → Properties → Internet headers.

Need help?

Axis Solutions can take your domain to full DMARC enforcement, so fake email using your name is rejected and only genuine, authenticated email reaches inboxes.