How to connect to mail server

[jeboy]

Hi! how can I connect to my mail server? I supplied the configuration in email options with my email and try to send out email to dummy customer, but still I received an error like this:

 

Warning: 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 d:\websites\speedy\lifessuccess.com\wwwroot\catalog\admin\includes\classes\email.php on line 520

 

Warning: Cannot modify header information - headers already sent by (output started at d:\websites\speedy\lifessuccess.com\wwwroot\catalog\admin\includes\classes\email.php:520) in d:\websites\speedy\lifessuccess.com\wwwroot\catalog\admin\includes\functions\general.php on line 22