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E-mail Header Analyzer
Trace the delivery path, delays and SPF/DKIM/DMARC results.
Ben Müller <ben@example.com>
From
Grüße aus Köln
Subject
Tue, 12 May 2026 10:00:01 +0200
Date
pass
SPF
pass
DKIM
pass
DMARC
5 s
Total delivery time
<ben@example.com>
Return-Path
| # | From | By | Time | Delay |
|---|---|---|---|---|
| 1 | laptop.local | mail.example.com | 2026-05-12 08:00:02 UTC | |
| 2 | mail.example.com | mx.recipient.org | 2026-05-12 08:00:07 UTC | 5 s |
Runs entirely in your browser. Nothing is sent anywhere.
How it works
- 1Paste or type your text.
- 2Choose the options you need.
- 3Copy or download the result.
About this tool
E-mail Header Analyzer: Trace the delivery path, delays and SPF/DKIM/DMARC results. Paste your text and the result appears immediately, ready to copy or download. Everything happens locally in your browser — nothing you paste is uploaded or stored.
How do I use the E-mail Header Analyzer?
Paste or type your text. Choose the options you need. Copy or download the result.
Is the E-mail Header Analyzer free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Is my data sent to a server?
No. Everything is calculated locally in your browser. Nothing you enter is uploaded, logged or stored.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.