Warning: mail() [function.mail]: 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:wampwwwmaincreateaccount.php on line 8

$to = "xxx@hotmail.com";
$subject = "Hi!";
$body = "Hi,nnHow are you?";
if (mail($to, $subject, $body)) {
  echo("<p>Message successfully sent!</p>");
 } else {
  echo("<p>Message delivery failed...</p>");
 }

smtp_server=mail.yourdomain.com
smtp_port=26
smtp_ssl=none
;default_domain=yourdomain.com
auth_username=smtpuser@yourdomain.com
auth_password=smtppassword
;pop3_server=
;pop3_username=
;pop3_password=
;force_sender=
;force_recipient=

[mail function]
; For Win32 only.
SMTP =

; For Win32 only.
sendmail_from =

; For Unix only.  You may supply arguments as well (default: "sendmail -t -i").
sendmail_path = "C:wampbinsendmailsendmail.exe -t"

ini_set('SMTP', 'smtp.yourisp.com');

SMTP = localhost
smtp_port = 25
sendmail_from = your_user@gmail.com

ini_set("SMTP", "localhost");
ini_set("smtp_port", "25");
ini_set("sendmail_from", "your_user@gmail.com");