• August 17, 2020
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This article will run you through the process of how to grant access to other Microsoft 365 Mailboxes as an Admin. Microsoft 365 allows Administrators to assign mailbox delegate permissions such as Read and Manage, Send as and Send on behalf to other users. Due to organisational requirements, there  may arise a need to assign access to certain mailboxes to allow users them to perform certain actions on behalf of that inbox.  This is useful for:

• Shared mailboxes
• Business Continutity
• Acting Appointments

These permissions can be assigned to other user mailboxes via Microsoft 365 Admin Centre. The available mailbox permissions are

• Read and Manage: This permission allows the assigned user mailbox(es) to read as well as manage emails in the user mailbox on which the permission is assigned.
• Send as: This permission allows the assigned user mailbox(es) to send emails from another user’s mailbox on which permission is assigned.
• Send on behalf: This permission allows the assigned user mailbox(es) to send email on behalf of the mailbox on which permission is assigned.

Assigning Permissions to Another User Mailboxes via Microsoft 365 Admin Center

Now that you know what permissions a user mailbox can assign to other user mailboxes, here’s how you go about assigning them.

1. Log in to your Microsoft 365 account and click Admin.
2. Then, go to Users>Active Users. Double-click on any desired user and then under Mail Settings section, click Edit option against Mailbox permissions.
3. A new page Edit mailbox permissions will open. Here, to set permissions for user mailboxes, click Edit against Read and manage feature.
4. Click +Add permissions to add the user mailboxes whom you want to assign this permission.
5. Select the desired user mailboxes from the list and then click Save.

And that’s it. Happy sharing!