Email Header Analyzer
Paste email headers to see the delivery path, delays between servers, and SPF, DKIM and DMARC results. Your work stays on this device whenever possible.
How to use Email Header Analyzer
- Open the email and copy its full headers (in Gmail: More, then Show original).
- Paste them into the box and press "Analyze headers".
- Read the summary and the SPF, DKIM and DMARC results.
- Follow the delivery path hop by hop and look for long delays or unexpected servers.
What Email Header Analyzer does
Paste email headers to see the delivery path, delays between servers, and SPF, DKIM and DMARC results.
Pasted-markup tools run locally. Live URL and domain checks use the rate-limited ToolkitPoint server and only contact public destinations. For Email Header Analyzer, the operation is specifically to paste email headers to see the delivery path, delays between servers, and SPF, DKIM and DMARC results.
Worked example
Load the sample: the summary shows the From, Return-Path and Reply-To addresses, SPF, DKIM and DMARC all pass, and the path shows three hops with about 6 seconds between the sending server and Google.
When Email Header Analyzer is the right tool
- Checking whether a suspicious email really came from the company it claims.
- Finding where an email was delayed on its way to you.
How to verify the result
Compare the finding with the live page source and the relevant search-engine documentation before changing a production site. The final Email Header Analyzer output should visibly match this goal: Paste email headers to see the delivery path, delays between servers, and SPF, DKIM and DMARC results.
Important limitations
Received lines can be forged below the first trusted server, and times depend on each server's clock.
A free Email Header Analyzer alternative
People looking for Email Header Analyzer often compare products such as Ahrefs, Semrush. ToolkitPoint is not affiliated with those services. This page keeps paste email headers to see the delivery path, delays between servers, and spf, dkim and dmarc results free and available without an account; features, limits, and policies on other products can change, so compare their current product pages before choosing.
Last updated: September 15, 2026
Frequently asked questions
How do I get the full headers?
Gmail: open the message, click the three dots, Show original. Outlook on the web: three dots, View, View message source. Apple Mail: View, Message, All Headers.
How do I read the delivery path?
Received lines are added by each server, newest at the top. The tool reverses them so hop 1 is where the message started, and shows the time spent between hops.
Can headers be faked?
The sender can forge Received lines added before the message reached a server you trust, and the From address itself. Authentication-Results added by your own provider are the reliable part.
Why is a delay shown as clock skew?
Each server stamps its own time. If a server's clock is wrong, the next hop can appear to happen earlier than the previous one.
Is it safe to paste headers here?
Yes. Nothing is uploaded; the headers are read in your browser. They contain email and IP addresses, so avoid pasting them into public forums.