[Email Archive] Procedure Overview (Microsoft 365)

Overview

This article introduces the Procedure for implementing Email Archive for customers using Microsoft 365（Exchange Online）, from preliminary checks through to Archiving emails in Email Archive.

Required Items

1. HENNGE One Customer Portal account
   Confirm the Login URL for the Email Archive administration screen and the initial administrator account information.
   For the Procedure to Confirm this information, see [Customer Portal] Checking the List of HENNGE One Services.
2. An account with Microsoft 365 Global Administrator privileges

Notes

1. The content of this article is based on product specifications as of October 2026 and may be changed without prior notice.
2. Administrator privileges for Email Archive are required to check the actual screens and change Settings.
3. For information on how to access the administration screen, see the following article.
   [Email Archive Modern] How to Log in to the Administration
4. Before implementation, be sure to review HENNGE One System Requirements.
   This article provides information on the limitations of each product and feature.

Table of Contents

Procedure

1. Pre-connection Checks

1. Confirm Microsoft 365 Domain Registration
   Confirm that the latest Domain information registered in Microsoft 365 is also registered in the HENNGE tenant. If there are any unregistered Domains, Add them using the following Procedure.
   What are the procedures to add additional domain?

2. [Email Archive Modern] Change Backup Duration for Archived Emails
   Email Archive allows you to configure the backup Period for archived emails.
   If changes to the default Settings are necessary, use this Procedure to change them.

2. Connecting Email Archive and Microsoft 365

1. [Email Archive] Connection Procedure (Microsoft 365)
   Configure Settings to archive emails sent and received through Microsoft 365 in Email Archive.
2. [Email Archive] Functionality Test
   Send a test email to Confirm that Email Archive is functioning properly and that emails are being archived.

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While we strive to ensure accuracy, we cannot guarantee its reliability or completeness.

In the event of any discrepancies or questions regarding the content, the official Japanese version shall prevail.