I downloaded “The Bat!” for you !

See the attached image.
Mail account and server name in the image are not real. Those are sample data.

With manual settings ( correct server and account ), I made sure with that avast! checked downloaded e-mail. ( Set PopServer1=127.0.0.1 in the Avast4.ini )

Select “Account” → “Properties” → “Transport” and you can see pop3 setting on “The Bat!”.

You should specify only one server as default.

Thanks