I don't see where you add customers to groups? Do I need to enable that somewhere? We are authenticating customers and getting customer data from Active Directory. The customers are not pre-added into otrs. If they haven't been into the interface before, they'll just log in and it will create their account I guess. It's not that I don't want otrs to work from outside, it doesn't. The fqdn isn't resolvable from the Internet. However, we have many users who cannot receive email sent from outside the organization. And because of the way Exchange (sucks) handles this, we have to create a distribution group and set it so that these users can only receive email from users in the distribution group. So what I was doing to do was have the "from" address be an address within the distribution group (helpdesk@... for instance) and the reply-to address be the otrs address. Because of the way Exchange works, I can't get the otrs address to be considered internal. Kinda blows.