8385 Email Autoresponder

Hi, I need an email autoresponder program. Here is how it works : 1. People will send a message to my email. 2. Then the autoresponder will reply (in a few minutes, or another timer) with a message. 3. The autoresponder needs to read the "From" tag and use that in the message. Lets say the From tag says : Frank Mitchell Our autoresponder will say something like "Hey Frank, Thanks for your message, etc. etc." It should not respond more than once to an email. And it should do this for every message. Thanks