Hi,
Are you using Unified Messaging? It doesn't sound like it if you're not seing voice mails in your inbox. There is no document that explains how Outlook works with AD, that is pure Microsoft. Basically what it boils down to is that if you have the user accounts that exist in AD imported into Unity (the ones your users use everyday to login to their PC's and Outlook), Unity will be delivering messages to that mailbox.
If you're running a voice mail only setup (where the users just get their messages via the phone), they aren't aware that there is a user account/mailbox in AD that actually stores those messages since they don't use it for their corporate tasks. The only way to get messages to arrive into their unified email inbox is to have imported their corporate user accounts into Unity. View Mail for Outlook is just a form that is loaded into Outlook and when its installed, the users are instructed to input their AD user account/account password and the Unity server information. View Mail for Outlook is geared towards Unified deployments, not voice mail only deployments.
Hope that helps,
Brad
