<?php
  $mail_to ="email@site.com";
  $mail_subject = "Subject";
  $mail_body = "Content";

  if(mail($mail_to, $mail_subject, $mail_body)){
      echo "Succesfully send email to \"$mail_subject\" to $mail_to.";
        } else {
             echo "Email send error \"$mail_subject\".";
    }
?>