mail() doesn't send

[happyme]

I want to send myself a message to work out how to use mail(). When I use the script below nothing happens.

//create content for email

$email = "[e-mail]";
$subject = "test successful";
$message = "test worked, yippee";
$header = "From: [email][e-mail][/email]\n";

//send  email
mail($email, $subject, $message, $header);

phpinfo() gives me this information:

sendmail_from [e-mail] sendmail_path /usr/sbin/sendmail -t -i

short_open_tag On

SMTP localhost

[suntra]

SMTP localhost means you have a SMTP server on your computer. Do you have a SMTP server installed on your computer ? If no, you should change localhost (in php.ini) to a valid SMTP server, for example, the one you use with your e-mail program.

[happyme]

I don't have php installed on my computer - phpinfo() gives the data from the server.