Has someone already done this using header_checks? If so, please post the example you use. I'm getting fed up with those sneaky bastards trying to convince my parents to click on their attachments. But still need to allow incoming .zip attachments if they're larger than, say, 80 kbytes.
Who in their right mind would want to zip a file with such small size anyway? /name=[^>]*\.(exe|zip)/ REJECT TIA