Outlook 2002 by default is setup to NOT allow emails to be sent outside the network you are in. For National access to send email you need to change one setting to be able to send emails.. Follow this proicedure to set the proper setting. (Sorry No screen shots yet)
Open Microsoft Outlook. Click the Tools menu and select E-Mail Accounts.
In the new window that comes up, click on the choice "View or change existing e-mail accounts"
In the next window, select the Button in the lower right that says "More Setttings..."
In the new window click on the tab at the top for "outgoing server"
In this window you will then see "My Server requires authenication". The box in front of it must be checked!
Then click on the OK button and then finish, which will close the window. At this point you can send email from any National Dialup point or anywhere out side our network.