> My problem is that how I can know that a valid e-mail address is exists on the mail server? > Is there some PHP function, or protocol, or something? The only way is to send email to it with an ID that the user has to give back to you (Eg. have them go to a particular URL). That way you can be more or less sure that a person has read the email. -- Richard Heyes HTML5 Graphing for Firefox, Chrome, Opera and Safari: http://www.rgraph.org (Updated January 4th) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
