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Give permission to other users mailboxes on office 365

Posted under Office 365 by admin


The other day I Found A Fix for a recent problem I was having. The issue is described as follows;

I needed to be able to give myself full access to other users mailboxes on Microsoft Office 365

To do this I found the following steps were required.

Note: Powershell commands are in bold. Type enter after each line item.

1. Install remaining script-lets so you’ll need to install the PowerShell from this link

2. Run Powershell as administrator.

3. Login to Office 365 with $cred=Get-Credential

4. Enter the admin username and password i.e name@mydomain.com and password.


Set-ExecutionPolicy Unrestricted

Now to Give permission to other users Mailboxes

$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell/ -Credential $LiveCred -Authentication Basic -AllowRedirection

Import-PSSession $Session

To give Billy full access to Jack’s mailbox use the following PowerShell Command.

Add-MailboxPermission -identity jack@mydomain.com -user billy@mydomain.com -AccessRights FullAccess

Or if you wanted to give Billy full access to all of the mailboxes..

Get-Mailbox | Add-mailboxpermission -user billy@mydomain.com -AccessRights FullAccess

I hope you too have found a fix.

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