I would like to start using recipient filtering in exchange. I see in the Message Delivery Options of Exchange Manager that I can filter out recipients who are not in the directory. My concern is that users that have an alias will not get their mail if I select this as their alias is not listed in the Global Catalog. Any input will be greatly appreciated. Thank you, Troy

Mail to every mailaddress in AD willbe accepted and all other rejected, if you check this option. /Lasse