[Shiro]

You can use this:

<?php
   switch($_POST['Recipient']
   {
      case "test1":
         $email_to = "test1@live.com";
         break;
      case "test2:
         $email_to = "test2@hotmail.com;
         break:
      case "test3":
         $email_to = "test3@yahoo.com";
         break;
   }
?>