query to check valid emails

what's the LIKE query to see if an email address is valid? For example, in PHP it's something like if (eregi("^[0-9a-z]([-_.]?[0-9a-z])*@[0-9a-z]([-.]?[0-9a-z])*\\.[a-z]{2,3}$",$ email,$check)) { echo "valid"; } i want to sort through rows in a db and look for invalid email addresses so like, select * from tbl where email like "???" Thanks! - Noah ---------------------------------- TradeMyTraffic! Banner Exchange http://www.trademytraffic.com