Under what circumstances is a vfolder refreshed?
Since I haven't looked at the code, I don't know for certain. I think
Evo will _add_ new emails to vFolders in real time. That is to say,
vFolder rules are evaluated every time a new message comes in. But it
will only _remove_ messages from a vFolder view when you manually
expunge or restart Evo.
I like this behaviour and can't imagine how it'd work well differently.
Cheers,
Jason.