Fax mail transport doesn't work in OWA unfortunately. Nor do I have Outlook installed on any client computers (we use Open Office) which forced me to get creative. We use the fax wizard to send faxes. The way I do it now is that I created an OU for contacts in the AD. Added all the contacts. So when they run the fax wizard to add a recipient, they search the AD for the contact name. The hard part was figuring out how to automate adding contacts to the AD without giving them access to the AD (lol who would give anyone access to the AD...) or having to add the contacts myself. I can post a detailed solution if anyone is interested.