Network Tools
Find clear answers to common questions about Email Header Analyzer, including usage, output, and common issues.
Use this Email Header Analyzer to inspect raw email headers and extract important fields such as From, To, Subject, Date, Message-ID, Received, Return-Path, SPF, DKIM, and DMARC-related results. It is useful for troubleshooting delivery issues, understanding mail flow, and basic email analysis.
Email Header Analyzer is useful for quick network checks, validation, and troubleshooting when you want a simple browser-based result.
It analyzes pasted raw email headers and extracts key delivery and authentication fields.
No. It parses only the header content you paste into the tool.
Yes. It counts and lists Received lines found in the header block.
Yes. It can extract those results when they appear in the headers.
It helps understand how an email was delivered and whether authentication checks passed.
Email Header Analyzer is useful for quick network checks, validation, and troubleshooting when you want a simple browser-based result.
Start by checking the input format, removing accidental spaces or unsupported characters, and comparing your input against the example pattern on the page.
Fix: Paste the raw header block for the clearest output.
Fix: Copy the full original raw headers from the email client.
Fix: This tool parses header content only and does not perform external reputation lookups.
If you want to see realistic input and output patterns, open the examples page. If you want step-by-step usage guidance, open the guide page.
Open the main Email Header Analyzer page to test your own input and generate a live result.