simple email validation ereg

Hi, I know that there are more complex functions and classes out there for validating email address', but some of them do return "invalid" on *technically* valid, although uncommon email address', so all I want is a simple test for: (anything)@(anything) followed by 1 or more (.anything) ie foo@foo : invalid foo@foo.foo : valid foo@foo.foo.foo.foo.foo : valid i wish to allow ANYTHING really -- not just a-z,A-z,0-9,_,- technically spaces, brackets, and all sorts of crap are valid in the user portion of the email address :) this will return true for foo@blah.com foo@blah.com.au foo@foo.blah.com.au etc etc... i'm aware that the results will not necessarily BE valid email address', but at least they'll *look* like valid email address'. it's for a simple guestbook/message board where some creative people have put in "lalaland" or "myplace" as an email address, rather than entering something that at least LOOKS like a valid address, or optionally leaving the field blank. my aim will be to strip out anything that doesn't at least LOOK like like an email address. regards, justin french