I am interested in starting my own service similar to GetResponse.com
that offers autoresponders to my customers. I am looking for a
scripting system that I can purchase that will allow me to setup an
account for each customer, esentially allowing me to run an unlimited
amount of autoresponder accounts from the script.

An example script that I have used is available at:
http://www.alstrasoft.com
I was not happy with this script, because it did not work as planned.

I have also looked at:
http://www.autorpro.com
(This script was exactly what I wanted but was too expensive.)

For the answer to this question I am looking for a couple scripts
available online that would be similar to autorpro.com Price is
important but I am looking more for similar functions as the
autorpro.com script.

Thanks