Has anyone else tried this software? I wonder; is the "permissions" based filtering more efficient? I only have a 14 day trial, and so, I sort of need more time...
Anybody know more about the permissions vs bayesian?... which generally produces better results...
Ask them for more trial time, most shareware authors can help with that.
I wouldn't consider permission based filtering myself, as I would view it as bothering the people that I email with, and other filtering methods work well for me. Yet I can see this method has it's place on the market.
There are people (very small minority) who ignore authorization requests.
You can implement simple permission based system in more powerful email clients too, even if it's not built in, through filtering. For example in Pocomail it would be easy, and I bet some other email clients could do it too.
(Espresso looks neat indeed, judging from the screenshots.)