Motorcycle Chain and Rain

Moin, I drive a tenere 700 and use the motorcycle mainly as a everyday device. So I drive also in rain or on scattered roads. Unfortunately my chain always rusts speedily. I have already tried a lot. S100, Liquid Moly, and Scottoiler. Currently I have the Scottoiler on it. It also drips well, so that I always see a few drops on the ground in the morning in the gerage. Nevertheless, the outer flaps of the chain are always a bit rusty. Is there a Wun what does not mean Kardan or belt or do I have to accept it?