Can any one tell me solution
Warning: mail() [function.mail]: Failed to connect to mailserver at "mail.netmantle.com" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in C:\xampp\htdocs\forum3\register.php on line 43
How to send mail from local host XAMPP
Easiest way I've found is to use the phpMailer class, and make use of its included SMTP class.