> > btw simply checking for a single '@' with a domain doesn't do > it... what if > the user has 'foo@xxxxxxx' or 'r+foo@xxxxxxx'. will your > regex accept/deny > this??? My function will quickly deny those because the DNS lookup for them will immediately fail. Will your regex deny 'bogususer@xxxxxxxxxxxxxxx'? Should it? > welcome to the world of email validation That's your world. Mine is much simpler. :o) Seriously, I think Ben and Manuel have it right. A combination approach is probably most effective (and complex). I was hoping for a simple solution for the regex challenged. Of course the old tried and true validation email that requires the user to validate himself is the most fool-proof method, but thats not an on-the-fly solution. JM -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php