I have to tell you....after running it for 1 day, I gave back and I went back to ver. 2.
Couple of reasons:
1. No matter what I tried, it wouldn't connect to Gmail POP server.
2. Several of my add-ons wouldn't work, even with Mr. Tech Toolkit installed.
3. I didn't like expanded message header, which is not shrinkable. Actually, there is an add-on, which apparently will do it, but I discovered it after I uninstalled ver. 3.