Re: Validation Email in PHP programs

"Steve Werby" <steve-lists@befriend.com> wrote > Renze is correct. Unless you're checking local email addresses which you > control, there's no way to check down to that level. And be happy there > isn't. Otherwise the amount of spam you get right now will increase ten > fold. I should have said there's no *reliable* way to check whether an email address on an external server is valid. Mail servers that have the SMTP VRFY command (and to a lesser extent the EXPN command) enabled may be able to tell whether an email address is valid. Since many (probably most) have these turned off and many domains have catchall email accounts installed connecting to an SMTP server to check would not reliably tell you whether the user supplied email address is asociated with an email account used by a human being. -- Steve Werby President, Befriend Internet Services LLC http://www.befriend.com/