My client has a domain (domain1.com) using SBS2003. All is fine! However they have another (domain2) and want to be able to send and receive mail using this one aswell. Receiving is easy but how do you set up the second domain and in Outlook allow them to select which account they want to use to send a particular email? I know if you have pop accvounts locally you can choose which account to send from in Outlook but how does this work with Exchange and setting it up?