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Message trace

Concept

A tool in the Exchange admin center that follows email messages through mail flow to show whether they were delivered, failed or quarantined.

✦ CONCEPTMessage traceM365.FM
Title graphic: Message trace (Concept)
TypeConcept
Documentationlearn.microsoft.com/en-us/exchange/monitoring/trace-an-email-message/trace-an-email-message

Key points about Message trace

Episodes about Message trace

Tune Microsoft Defender for Office 365 Against Phishing

2025-08-05 · Video on YouTube

Your users still click phish—even with Defender for M365 “fully enabled.” The culprit isn’t the attackers; it’s misaligned layers: Safe Links, Safe Attachments, anti-phishing ML, and mail flow rules that overlap, conflict, or leave gaps. This guide traces how…

Articles about Message trace (2)

Frequently asked questions

How should you maintain Defender over time?

Run weekly reviews using Threat Explorer and Message Trace, and tune policies continuously. The episode treats Defender as a living system rather than a checklist. · From the episode: Tune Microsoft Defender for Office 365 Against…

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Sources

Maintained by Mirko Peters (Microsoft MVP) · Last updated: