I got two questions about the Global Address list here:
I get more than 200 email contacts and want to add into the Default Global Address list at once by using PowerShell . But it only allowed me to add 40 contacts each times which not efficiency. Is there any way to do that at once?
Does the GAL allows the duplicate email address? Since we have clients that have several members share one email. So If there's any way that could make Outlook 2016 or GAL allow to create duplicate email address?