Here are a few diffrent ways to send an email with php. This is a very simple php mail script, you can use a mail funtion then you dont have to retype the email code the whole time or you can phpMailer that you can authenticate with an email address.

Plain Text Email:

$email_to = "user@domain.co.za";
$subject = "This is a test email";
$headers = "FROM: user@example.com"."";
$headers .= "Reply-To: user@example.com"."";
$headers  .= "MIME-Version: 1.0"."";
$headers  .= "Content-type: text/plain; charset=iso-8859-1"."";
$mail_body = "This is the body of the simple email!!";

//check if the mail has been sent
    if (mail($email_to, $subject, $body, $headers) ) {
       echo "Email sent";
    } else {
       echo "Email could not be sent";
    }

HTML Email:

$email_to = "user@domain.co.za";
$subject = "This is a test email";
$headers = "FROM: user@example.com"."";
$headers .= "Reply-To: user@example.com"."";
$headers  .= "MIME-Version: 1.0"."";
$headers  .= "Content-type: text/html; charset=iso-8859-1"."";
$mail_body = "This is the body of the simple email!!";

//check if the mail has been sent
    if (mail($email_to, $subject, $body, $headers) ) {
       echo "Email sent";
    } else {
       echo "Email could not be sent";
    }