Exchange SBS Problem-When first installed, I attempted to use the Exchange POP3 connector to collect email @ domain1.com (an ISP hosted domain/POP server). This connector did not work at all. I tried stopping and restarting all the services dealing with this connector, but it didn't help. Finally, I gave up and used the Outlook 2003 client to attach to both the Exchange server (on my local domain) and the POP accounts (on the hosted domain). I now have another problem. First I would like to remove the POP3 connector from my SBS 2003 Server, and I cannot seem to find a way to do it. Second, I have yet to change the MX record and have email go directly to my Exchange server so my whole network still pulls POP email from the ISP hosted service (domain1.com), I cannot send email to users listed in my Exchange server who are only accessing from a webbased mail service using the IPS hosted domain1.com accounts. In other words, UserA has an Exchange account on my server. I send to the POP3 email address they have. The email never gets there. I don't get any errors. Everyone else gets my emails, except the users on my Exchange Server. The only difference I can find is that these users are not listed in the POP3 connector service that would try to collect external POP3 email accounts. Any ideas why I can't send to these users?