Send email based on user login

This isn't currently possible using the Notifications interface. The Routing can send an email based on a drop down, radio button or checkbox field selection but not a user login.

If you wanted to customize how this works you can do so via custom code and the use of api hooks.

The hook to change the Send To address for the Admin Notification is gform_notification_email and here is an example of using it:

<?php
add_filter("gform_notification_email", "change_notification_email", 10, 2);
function change_notification_email($email, $form){
   return "test@test.com";
}
?>

The hook to change the Send To address for the User Notification is gform_autoresponder_email and here is an example of using it:

<?php
add_filter("gform_autoresponder_email", "change_notification_email", 10, 2);
function change_notification_email($email, $form){
   return "test@test.com";
}
?>

These examples don't do exactly what you want, you would have to customize them. You would have to write code to get the user who is logged in and then set it to return the email address appropriate to that user login.