When it comes to email validation, I would recommend using the IMAP function which will be both fast and correct: http://us.php.net/manual/en/function.imap-rfc822-parse-adrlist.php Otherwise, it's guaranteed that you are having at least some false positives, and probably some false negatives. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php