Autoresponder text not working

So I did a bunch of test with yahoo gmail and host gator email. If I use
function change_cf_from() {
return ” (Email address hidden if logged out) “;
}
add_filter(‘avf_form_from’, ‘change_cf_from’, 10);

I as the receiver of the form data get the form information via email but the sender doesn’t get an auto response.

If I remove the function change_cf_from() {
return ” (Email address hidden if logged out) “;
}
add_filter(‘avf_form_from’, ‘change_cf_from’, 10);

and submit the form with data, I as the sender get an auto response message but the receiver of the from doesn’t get any of the data because there isn’t an email being sent.

What’s up with that?