This hard to find free utility is an awesome little tool. It seems to work with all Outlook versions, from 97 up to 2003 (have not tried it on versions beyond that).  You download and install the utility and it creates a small little “ListServ” button up on your Outlook toolbar.

Click on that and you will bring up the simple window. Here you can choose your address group, and it will extract them all into a nice format that can be copied to the clipboard, and used for whatever you wish. Perfect for exporting into an external email list tool, or newsletter software.

You can get the free Outlookemail extractor/exporter utility here.