The problem is that pdf creation require not header send before pdf file, if you configure php to use this error level:
error_reporting = E_ALL & ~E_NOTICE & -E_USER_WARNING you do not get error, but as usually you use error_reporting = E_ALL & ~E_NOTICE you get the error Alessandro -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]

