$SEND = "Date: ".date("D, d M Y H:i:s") . " UT\r\n";
$SEND .= 'Subject: =?'.$smtp_charset.'?B?'.$subject."=?=\r\n";
$SEND .= "Reply-To: ".$SmtpUser."\r\n";
$SEND .= "MIME-Version: 1.0\r\n";
$SEND .= "Content-Type: text/plain; charset=\"".$smtp_charset."\"\r\n";
$SEND .= "Content-Transfer-Encoding: 8bit\r\n";
$SEND .= "From: \"".$SmtpUser."\" <".$SmtpUser.">\r\n";
$SEND .= "To: $to <$to>\r\n";
$SEND .= "X-Priority: 3\r\n\r\n";
$SEND .= $body."\r\n";