[Email DLP] Confirm Email Logs (Microsoft 365 / Message Trace)

Overview

This article describes the Procedure for confirming the Delivery Status of emails from Microsoft 365（Exchange Online）.
※ For information on how to confirm the Email DLP send history, please refer to [Email DLP] Search Filter History.

Notes

1. The content of this article is based on product specifications as of November 2026 and may be changed without notice.
2. You must perform these operations using a Microsoft 365 account with the appropriate Role assigned.
3. Some items, such as the View, may differ due to updates or specification changes.

Procedure

1. In the ［Microsoft 365 admin center］, click ［View All］ and select ［Exchange］.
2. After navigating to the ［Exchange admin center］, click ［Mail flow］, then ［Message trace］.
3. After navigating to ［Message trace］, select ［+ Start a trace］.
4. Enter the sending addresses in ［Sender］, then select ［Search］.
   Enter other Predicate as necessary.
5. Select the applicable email from the Showing results.
6. Confirm the Delivery Status.
   ※ When sharing the Delivery Status with HENNGE due to an issue or other reason, click ［Copy report Text Body］ in the Delivery Status of the Target email, paste it into a file such as a Text Body file, and share it with us.

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