<?php # this one worked fine for me, but it does not cover the full RFC like: "name" name@xxxxxxxxxxxxx OR name <name@xxxxxxxxxxxxx> $regex = "^[a-z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+(\.[a-z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*\.([a-z]{2,})$"; if (eregi($regex, $email)) { // do something } # Beware that the filter functions only work under PHP5+. If your PHP supports them they should be the preferred choice ?> -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php