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Office 365

How to perform mailbox delegation in Microsoft 365 without PowerShell

  • Modify send as, send on behalf, and full access mailbox permissions
  • Perform mailbox delegation without PowerShell

In an Microsoft 365 or hybrid Exchange environment, administrators might need to provide access to other users to manage their mailboxes. There are three types of mailbox permissions available in Microsoft 365:

Full Access: Permits a user to act as the owner of the mailbox. The user can read and modify emails, as well as create tasks and calendar items.

Send As: When an individual with this permission sends an email, from the recipients' perspective it will display as though the email was sent by that group, and not that individual user,

Send on Behalf: Permits a user to send emails on behalf of the mailbox.

Using the Exchange Admin Center or PowerShell to apply different permissions to different users or groups can get complicated. ADManager Plus helps you overcome this challenge as you can delegate permissions to users, and mail-enabled security groups to manage Exchange Online mailboxes in bulk.

  1. Steps to configure mailbox delegation in Microsoft 365 using ADManager Plus
Steps to configure mailbox delegation in Microsoft 365 using ADManager Plus

To gain insights into Exchange Online mailbox settings, ADManager Plus offers out-of-the-box reports that can fetch information for individual Microsoft 365 tenant accounts. Using ADManager Plus, you can also provision Microsoft 365 accounts, manage user licenses, and perform a wide variety of user, group, contact, and mailbox modification actions.


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ManageEngine ADManager Plus, a web-based Windows Active Directory (AD) management and reporting solution, helps AD administrators perform their routine activities effortlessly. This AD management software features an intuitive, easy-to-use interface that enables technicians to handle complex tasks, such as AD object backup and recovery, user account provisioning, and more, all from a single console. ADManager Plus is also equipped with an extensive list of reports pertaining to all AD objects, Microsoft 365, G Suite, and more. For more information about ADManager Plus, visit

Other features

  • Microsoft 365 User Reports

    Receive detailed information about your Microsoft 365 users with ADManager Plus' out-of-the-box Microsoft 365 user reports. You can also automatically generate and email these reports to all relevant users.

  • Microsoft 365 Management

    Efficiently manage your Microsoft 365 users, licenses, contacts, groups, and more with simple point-and-click actions.

  • Microsoft 365 Automation

    Choose from prebuilt actions, and automate the most common Microsoft 365 operations, such as user provisioning and license management, without scripting.

  • Microsoft 365 License Management

    Instantly assign, replace, and remove Microsoft 365 licenses to ensure optimal license usage across your organization.

  • Microsoft 365 Shared Mailbox Management

    Bulk create, modify, and delegate the management of Microsoft 365 shared mailboxes without any PowerShell scripts. Managing your shared mailboxes has never been easier.

  • Microsoft 365 Group Reports

    This extensive catalog provides Microsoft 365 group reports for every need. Schedule these reports to be generated automatically at the desired times.

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