The place I work has been filtering ALL .zip attachments from all email to avoid the possibility of infection. The early birds who received them got a fast-propagating virus which infected over 7,000 files on their machines in record time.
Do be careful & even if you need to send something or are expecting to receive something which would normally require a zipped attachment, don't bother with it right now as it will only create more difficulty or get stripped by the mail servers.
