Gm help! Problem changing password! In gamezaion site!

gm please help! when i change my password in gamezaion site... i receive this error when i click change password!

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:\xampp\htdocs\gamezaion.com\changepw.php on line 114
A confirmation email was sent, Please verfy your account.

then when i check my mail there's no confirmation sent on me....

please gm help me.... coz some one is hacking my account... T_T