The discussion about valid email addresses reminded me of this article: https://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.

The discussion about valid email addresses reminded me of this article: https://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx/ https://haacked.com/archive/2007/08/21/i-knew-how-to-validat... For any programmer that's ever tried to validate email addresses it's an eye opener.