Hello

I am looking for a software with the following specs.

1- When someone sends an email to a specific email box, his email is added to a auto follow up. This will send a predefined list of emails at defined intervals.

2- Opt Out facilities.

3- It will be very good if it can work as a mail client with automatic mail checking of a pop3 email box.

I will appereciate if someone can help, otherwise I must develop such a software myself.

Regards,
Mac