from a client email

Zip isn’t some crazy format that no one uses. It is the #1 way that people consolidate files. That your email system is still blocking them at this date is ridiculous. Ridiculous! It’s not 2001 and zip files in emails are transporting viruses and bringing down the house. It’s 2010 and organizations have dedicated virus and spam filters that will stop any virus from ever hitting the corporate mail server, and those virus filters can scan zip files to weed them out!