Managing Mailbox Access in Exchange Server

How to Grant Mailbox Access in Exchange Server

As a Systems Administrator, you may need to grant someone mailbox access. This can be done for a variety of reasons, such as allowing a new employee to access their email, giving a colleague access to a shared mailbox, or granting a delegate permission to manage your email.

There are two ways to grant someone mailbox access: through the Exchange Admin Center (EAC) or PowerShell.

To grant mailbox access through the EAC:

1. Log in to the EAC.
2. In the navigation pane, click on Recipients.
3. In the list of recipients, click on the mailbox that you want to grant access to.
4. In the details pane, click on Mailbox delegation.
5. In the Delegate access section, click on Add.
6. In the Select users or groups dialog box, type the name of the user or group that you want to grant access to, or click on Browse to search for the user or group.
7. Click on OK.
8. Click on Save.

To grant mailbox access through PowerShell:

1. Open PowerShell.
2. Import the Exchange Online Module for PowerShell.
3. At the PowerShell prompt, type the following command:

Add-MailboxPermission –Identity <mailbox_alias> –User <user_alias> –AccessRights <permission_level>

Replace <mailbox_alias> with the alias of the mailbox that you want to grant access to, <user_alias> with the alias of the user or group that you want to grant access to, and <permission_level> with the level of access that you want to grant.

The following table lists the available permission levels:

Once you have granted someone mailbox access, they will be able to access the mailbox using their Outlook client or through the webmail interface.