Tag Archives: zip codes

Why don’t more survey software packages offer zip code validation or real e-mail address validation? I don’t just mean syntax validation — anyone can offer that (although it is interesting that not everyone does). I mean real zip code validation where the postal code is looked up in a database or an e-mail address is tested as soon as it is entered to verify that it is real. It seems that both of these features would be easy to implement and would be of much use to the client. Continue reading →