That's the RFC it follows, yes. I found out about the regex here: http://www.regular-expressions.info/email.html http://www.regular-expressions.info/email.html

That's the RFC it follows, yes. I found out about the regex here: http://www.regular-expressions.info/email.html http://www.regular-expressions.info/email.html The author does say you shouldn't use it -- it's a crazy regular expression after all -- but it IS the RFC :D