A View to Remove Documents which are included in Document Collections

Dear Forum, 

I have a document class called email correspondence. This email correspondence links to a particular asset which is an Object.

Within this class I want to create document collections to view my emails by major topics.

I have successfully created some document collections. And now I want to create a view which shows only my emails which are not already in document collections.

I already have a view that shows me the document collections. 

Can anyone provide some advice on what filter settings I might use to achieve this. Is it even possible?

Many thanks and regards,