I followed the directions for a transition from 2003 to 2007 found here (http://exchangeserverinfo.com/2007/12/04/transition-from-exchange-2003-to-exchange-2007.aspx
). I've moved one mailbox (mine) from the 2003 server to the 2007 server. So far everything works except sending mail externally and accessing owa externally. When I check under Organization Config and Hub Transport, I only see one connector (AOL.com) which I'm not sure I understand. I thought there would be a connector from 2003 to 2007. So, I need help setting up this connector but don't want to decommission the 2003 server just yet either. Ideally I'd like to move the mailboxes over a few at a time and be able to get and receive email on both. But, I've come to the conclusion that if I can get my mailbox moved and working I'll do the rest ASAP. I should also point out that I plan to change the internal IP of the 2003 to the 2007 so I won't have to change any of the MX records (right?) and that would make the OWA (I know it's not called that anymore) work, correct? can someone help with the smtp connector? Also, do I have the right idea with just changing internal IPs and doing all the mailboxes at once (about 150 or so)? Everything would work that way right?
Thanks in advance for the help.