query regarding mail

[hiral]

how can i start smtp server in apache??
Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in C:\xampp\htdocs\PhpLearn\sendmail.php on line 8

[egami]

Well, you don't have a sendmail application running. Which Mailer did you install?
Do you have a firewall turned on which is blocking port 25 to localhost/localip?

Many factors come into play here, the first of which that you are using Windows.