| Posted by Simon on 06/14/92 11:20 
> Such a function exist. I have seen it somewhere.> Some sites use this to check if the mail address is valid or not.
 > But as you said a mail server can always deny the request.
 > Guess most reply appropriately.
 >
 >
 > Arun
 
 Are you sure you are not talking about a regex to check if a email address
 is a _possible_ valid address?
 
 Like check for at least one '@' and at least one '.' after the '@' and so
 on?
 That's the only ones I know of that would work.
 
 Simon
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