I've recently been tasked with changing all owners of shared mailboxes in two Organizational Unit's permissions from ReadAccess to FullAccess. Is there a way to do this? The below obviously does not work since -OrganizationalUnit will not work with get-mailboxpermission, but just trying to give an idea of close to what I'm trying to accomplish. Any help would be much appreciated.

$ExistingReadPerms = Get-mailboxpermission -OrganizationalUnit "Ou/ConferenceRooms" -resultsize "unlimited" | ? {$_.AccessRights -eq 'ReadPermissions'}

Foreach ($Perm in $ExistingReadPerms)

{

Add-mailboxPermission -OrganizationalUnit "Ou/ConferenceRooms" -resultsize "unlimited" -AccessRights FullAccess -user $Perm.User

}

Here's where I'd start:

$mbxs = Get-Mailbox -OrganizationalUnit 'OU=Test Users,DC=domain,DC=com'

foreach ($mbx in $mbxs) {

    ....

}

So I'm not sure if Identity is right. It's still not quite right.

$mailboxes1 =@(get-mailbox -organizationalunit "domain/Messaging Resources/ConferenceRooms" -resultsize unlimited | { ($_.IsInherited -eq $false) -and -not ($_.User -like NT AUTHORITY\SELF) })

$mailboxes2 = @(get-mailbox -organizationalunit "domain/Messaging Resources/SpaMailboxes" -resultsize unlimited | { ($_.IsInherited -eq $false) -and -not ($_.User -like NT AUTHORITY\SELF) })

$mailboxes = $mailboxes1 + $mailboxes2

$mailboxescount = $mailboxes.count

for ($i=0; $i -lt $mailboxescount; $i++)

{

$CurrentMailbox = $mailboxes[$i]

 $currentmailboxreadpermissions = $Current$CurrentMailbox | Get-mailboxpermission | where {$_.AccessRights -eq 'ReadPermissions'}

$currentmailboxreadpermissions = @($Current$CurrentMailbox | Get-mailboxpermission | where {$_.AccessRights -eq 'ReadPermissions'})

$currentmailboxreadpermissionscount = $currentmailboxreadpermissions.count

for ($j=0; $j -lt $currentmailboxreadpermissionscount; $j++)

{

$currentidentity = $currentmailboxreadpermissions.identity

$currentidentity = $currentmailboxreadpermissions.identity

Add-mailboxPermission -AccessRights FullAccess -user $currentidentity

}

}

• Edited by James Teague 4 hours 16 minutes ago removed highlight