Karlosp.net

function mail_utf8($from, $to, $subject = '(No subject)', $message = '', $header = '') {
  $header_ = 'MIME-Version: 1.0' . "\r\n" . 'Content-type: text/html; charset=UTF-8' . "\r\n";
  $header_ .= "From: $from\r\n" . "Reply-To: $from\r\n";
  mail($to, "=?UTF-8?B?".base64_encode($subject).'?=', $message, $header_ . $header);
}