Ok this is slightly off topic but I figured this crowd would know. I am looking for a program that will extract information from an e-mail such as the person's name, e-mail address, etc. and will allow me to automatically respond using this information in a custom e-mail. It would also be nice if I could plug the information into a database to track contacts, etc. We get enough mail that such a program would help! I have seen RSVP but I would like to know what the more experienced folks are using. Thanks!

The best program that does what you are describing and much more is called procmail and it runs on Linux (and other unix flavors. It's basically a unix shell triggered by email. You can setup special filters to trap specific emails and run them through other filters or programs. You can setup responders, or call other programs to process the email etc... the possibilities are endless.