Message Header Analyzer (Microsoft)

online Free

mha.azurewebsites.net

🇺🇸 United States

Quick Facts

Open Source

Yes GitHub

Platforms

web

API Available

no

Account

Required

Skill Level

beginner

Offline Capable

Yes

Output Formats

html

What it does

Official Microsoft tool for analyzing email headers. Normalizes timestamps across mail server hops to identify where delivery delays occur. Clean tabular output showing routing path and timing. Part of Google Admin Toolbox suite. Actively maintained with GitHub feedback.

When to use it

Microsoft 365/Exchange troubleshooting
Identifying email delay sources
Clean visual header breakdown
When you want official Microsoft tool

When not to use it

SPF/DKIM/DMARC validation
Phishing investigation
Automated analysis

Limitations

Focused on timing/delays only
Less detailed than MxToolbox
No authentication protocol analysis

Frequently Asked Questions

Is Message Header Analyzer (Microsoft) free to use?

Yes, Message Header Analyzer (Microsoft) is completely free to use with no subscription required.

What platforms does Message Header Analyzer (Microsoft) support?

Message Header Analyzer (Microsoft) is available on Web (browser).

Does Message Header Analyzer (Microsoft) require an account?

No, Message Header Analyzer (Microsoft) does not require an account. You can use it without signing up.

Is Message Header Analyzer (Microsoft) open source?

Yes, Message Header Analyzer (Microsoft) is open source. The source code is available on GitHub.

What are the limitations of Message Header Analyzer (Microsoft)?

Focused on timing/delays only Less detailed than MxToolbox No authentication protocol analysis

What does Message Header Analyzer (Microsoft) do?

Message Header Analyzer (Microsoft) is a web-based tool for email & phishing analysis. Official Microsoft tool for analyzing email headers. Normalizes timestamps across mail server hops to identify where delivery delays occur. Clean tabular output showing routing path and timing. Part o

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