Target
Customers using Email Archive Modern
Content
This article introduces update information for Email Archive Modern.
Update Details
Addition of "Message-ID" Field to Download Headers Feature
A new "Message-ID" field has been added to the CSV file output by the Download Headers feature.
By checking the Message-ID, you can uniquely identify the target email, enabling more accurate investigations and status checks.
* Please note that this field applies to emails sent or received on or after January 1, 2026, 09:00 JST (UTC+09:00).
For emails before this date, the value will be blank.