I'm using the Office 97 package on Windows XP Pro, and with some tweaking it works fine. I installed about 50 machines with the same kind of setup. Anyways, once in a while after setting it up and releasing it to the user, they tell me that their e-mail isn't working. It's always the same problem. When they try to send e-mail to an internet address, a error message comes back saying "No transport provider was available for delivery to this recipient", the internal e-mail does work, it's just the internet e-mail. Here's how it's setup in my network: Exchange Server is setup for Internal E-mail Only Outlook 97 is configured with Internet E-mail, and given all the proper SMTP, POP addresses, and so on.. Ok, so I've verified that all the Internet E-mail settings are correct, and it down to just figuring out why it's doing this, and how to correct it! When this happens sometimes I need to uninstall office, and re-install and it works, other times it more of a drastic measure.. HELP! Any ideas how I can fix this??