/* Author: 
   Date: 19-09-2007
   Filename: 
   Description: 
   History: 
*/

$email_address_bad = "string which --isnt email format_";


/* Check if valid email address */
$regex = "^[_+a-z0-9-]+(\.[_+a-z0-9-]+)*"
         ."@[a-z0-9-]+(\.[a-z0-9-]{1,})*"
         ."\.([a-z]{2,}){1}$";


if(!eregi($regex,$email_address_bad)){
   echo "Email Address Invalid!";
}