Having problems connecting Outlook 2003 to our Exchange server. After reinstalling XP and rejoining the domain and statically assign the DNS server. Outlook will not log on to the exchange server. The error message is : Outlook can not log on. The connection to the Exchange Server is unavailable. Outlook must be online or connected to complete this action. I'm logged in to the domain and can access all the network drives. I can ping the exchnage server, the DNS settings are correct, and I can access the Internet. I have not installed any antivirus programs yet either and the windows fire wall is disabled. Does anyone have any ideas? Yes Outlook was working properly before reinstalling XP and yes everyone else in the company is accessing exchange server with no problem.