How to Determine Account Type?

Question

In my script I need to know whether an account is a Mail-User, Mail-Contact or licensed user account.

Presently I have to know this before-hand

Answer 1

I would probably look at RecipientTypeDetails to get the Mailbox type for the Mailbox/MailContact.

Maybe do the opposite if you have more MailContacts then Mailboxes in order to optimze it.

And I guess by "Licensed" you mean a UserMailbox? Since you do not mention Azure AD. In Azure AD you have IsLicensed with Get-MsolUser.

function GetAccountType($user)
{
    $Mailbox = Get-Mailbox -identity $user | select name, RecipientTypeDetails
    $type = ""
    if ($Mailbox.RecipientTypeDetails -eq "UserMailbox")
    {
        $type = "Licensed"
    }
    elseif ($Mailbox.RecipientTypeDetails -eq "SharedMailbox")
    {
        $type = "Shared"
    }
    else
    {
        $MailUser = Get-MailContact -identity $user | select name, RecipientTypeDetails
        if ($MailUser.RecipientTypeDetails -eq "MailContact")
        {
            $type = "Mail-Contact"
        }
        else
        {
            $type = "Something else"
        }
    }
    $type
}

$a = GetAccountType -user "userid"
$a | Out-Host