Mapping Mailboxes with Powershell including Auto Map Parameters

Managing mailbox permissions using Powershell and defining if the delegated mailbox should not be auto mapped.

Command List※

Import the Exchange Online Management Module and Connect to Exchange Online

Import-Module ExchangeOnlineManagement
Connect-ExchangeOnline

Remove Mailbox Permissions (If user has existing permissions)

Remove-MailboxPermission -Identity [email protected] -User [email protected] -AccessRights FullAccess

Add Mailbox Permissions without Auto map Enabled

Add-MailboxPermission -Identity sharedmailbox@domain.com -User sampleuser@domain.com -AccessRights FullAccess -AutoMapping $false

Checking Access List of Who Has Access for a Mailbox

Get-MailboxPermission -Identity sharedmailbox@domain.com

Checking Access List of What Mailboxes a User Has Access To

Get-MailboxPermission -Identity sampleuser@domain.com | Format-List