[Evolution] How to create a rule, sending all unknown message to a waiting folder ?

[HiddenID <myletterbox maboiteauxlettres yahoo fr>]

Hello all.

It is my first question/contribution to the evolution list.

I've used Evolution for more than 6 years. And still using.

Here is my question:

I'd like to know if it is possible to create an automatic "rule", which will place:

• all messages from sender who are not listed in contacts, into a "to be verified" folder

If it is not possible, then, I wander if an other rule could be defined, like:

• all messages received, go into a "to be verified" folder, which is not the "junk" filtering folder.
  

Antoine