We've just upgraded to GW2014 and switched from live to caching mode,
and are horrified (to varying degrees, depending on the tendency to
hoard) to find that trash is not kept perfectly in sync. For instance,
despite repeated directives to "retrieve entire mailbox," my caching
mailbox shows 689 items in trash while webaccess tells me there are 2658.

Users (and the occasional admin) do look for things in trash and get
upset if they aren't there. Is there a setting I can adjust to include
this in a complete sync?