I am trying to get a new user connected to the exchange on SBS 2003 but I keep getting the message: "The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action." Or It says that the name can't be resolved. The other users connect to exchange fine. I put in the exchange server just like the other computers have it in the mail account settings. They are using a servername.domainname.local The computer has been formatted, the OS is XP Pro with all the latest updates 1. User can get to / log in to OWA. 2. I checked the other computers email settings and they do not use Rpc/HTTP User has no problem connecting to the Exchange server when starting Outlook remotely; the issue arises when they try to authenticate. The user can access all the files on the server so I know she connects to the domain correctly. I have searched and tried MANY different fixes but haven't found one that is a solution yet.

Hi You case is moved by MVP. But I need many details. >> I keep getting the message: "The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action." Or It says that the name can't be resolved. It seems to be network error, DNS error,or account error. Then you solve the problem by formatting and reinstalling the OS. >>the issue arises when they try to authenticate. The user can access all the files on the server so I know she connects to the domain correctly. Which does issue arise when they try to authenticate? Can’t user pass the authentication? Can you post any error about it? What is version of your outlook? Does this computer join in the domain? Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.