Help! THi iS mAddeninG!
I can successfully send email to valid addresses using the mail function : mail($recipient, $subject, $body, $header)
BUT if the $recipient is NOT a valid email address, I do not receive an Undeliverable email message.
I define $header as follows:
$from = "info@linda.com";
$header = "MIME-Version: 1.0\r\n";
$header .= "Content-type: text/html; charset=iso-8859-1\r\n";
$header .= "From: Linda <$from>\r\n";
$headers .= "X-Sender: < $from >\n";
$headers .= "X-Mailer: linda.com form\n"; // mailer
$headers .= "X-Priority: 1\n"; // Urgent message!
A n y I d e a s, A n y o n e?