当我尝试使用PHP发送电子邮件时，我一直收到此错误消息：

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:\wamp\www\dressoholic\register.php on line 50

我的php.ini看起来像这样：

[mail function]
; For Win32 only.
; http://php.net/smtp
SMTP = localhost
; http://php.net/smtp-port
smtp_port = 25

; For Win32 only.
; http://php.net/sendmail-from
sendmail_from = you@yoursite.com

我将笔记本电脑用作服务器。.我在做什么错？谢谢。