$email = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL); if (!filter_var($email, FILTER_VALIDATE_EMAIL)) die("Invalid email address format."); Use code with caution. Step 2: Strip Newline Characters From Headers
Thousands of unexpected messages filling up the mail transfer agent (MTA) queues (Postfix, Exim, Sendmail).
$email = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL); if (!filter_var($email, FILTER_VALIDATE_EMAIL)) die("Invalid email address format."); Use code with caution. Step 2: Strip Newline Characters From Headers
Thousands of unexpected messages filling up the mail transfer agent (MTA) queues (Postfix, Exim, Sendmail).