I'm test-driving Zimbra Desktop for our institution and on set-up today I started to create some filters. I wanted to run them on the mail already in my inbox, but couldn't see a way to do so.

Searching online told me that I should be able to go to the preferences tab, choose filters, and there should be four buttons across the top: New Filter, Edit Filter, Delete Filter, and Run Filter.

I'm missing the 'Run Filter' button. Is this something that's supposed to happen? Is there another way to run filters on mail that already exists in a folder? Has something moved?