How to assign full access permission of shared mailbox in bulk

Introduction

This script is used to help administrator to assign the full access permission of a shared mailbox to the organization mailbox or a single mailbox.

Scenarios

This script is used to help administrator to assign the full access permission of a shared mailbox to the organization mailbox or a single mailbox..

Script

You can use this script in the following way.

1. Open Windows PowerShell.

2. Type the one command< Script Path> at the Windows PowerShell Console.

For example, type C:\Script\ GrantFullAccessToSharedMailbox.ps1

Here are some code snippets for your references.

PowerShell
Edit|Remove
$BoxList = Get-Mailbox -RecipientTypeDetails UserMailbox
foreach($mailbox in $BoxList)
{
    Add-MailboxPermission -identity $SharedMailbox -user $Mailbox.PrimarySmtpAddress -AccessRights FullAccess -InheritanceType all
}

Examples

 Example: Assign all user mailboxes in organization the full access permission of the shared mailbox.

The sample is showed below
 GrantFullAccessToSharedMailbox.ps1 -Credential $credential -SharedMailbox ShareMailbox@contoso.com –All

Example: assign the mailboxes User@contoso.com the full access permission of the shared mailbox.

The sample is showed below
 GrantFullAccessToSharedMailbox.ps1 -Credential $credential -SharedMailbox ShareMailbox@contoso.com -SingleMailbox User@contoso.com

Prerequisites

Exchange Online
Windows PowerShell 2.0
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