From: Akron, OH, USA
Can you be more specific about what kind of connection to your Exchange server you are trying to achieve? If you want to use the Exchange Server Service from Outlook to connect to your exchange server over the internet, then I think you're going to be out of luck. If you want to connect to your exchange 5.5 server with SMTP/POP using the Internet Mail Service of Outlook/Outlook Express, you must first verify that your Internet Mail Connector is setup properly and that you can connect to the server internaly. Once you have that working, you'll need to open ports 25(SMTP), 110(POP3), and perhaps 143(IMAP) from ISA to your exchange server.