How does the process work now?
As far as the 'incoming email' bit, there is no "email" - not really, there is a form on a web page, the user inputs some info to the form, and clicks SUBMIT. then it goes to another page which 'sees' the info that was on the page and concatenates it into text which it then emails out
example
(Previous page had fields, sex, phone, email, firstname)
$title ="Mr. " ;
$recommend_vehicle ="Ford Mustang";
$recommend_vehicle="Volkswaggon Beetle";
if ($sex="F" ) {
$title ="Ms. ";
email_message$ ="Dear ". $title. $firstname . ", how are you today? ";
email_message$ .="I have just the car for you! ";
email_message$ .="You will love your new " . $recommend_vehicle;
email_message$ .=" we will call " .$number. " to arrange delivery ";
...sendmail...
Now, if you have an email address that is already receiving emails, and you want to open them up, "read" them, and send some intelligent email back, thats a bit more complicated, and will depend on the email system you are reading from and need SMTP/IMAP information.
I dont believe your situation is that complicated however..
pm me a link to the page and I'll give it a look, its often more difficult to' explain than show