Duplicate content on feeds import

I am trying to import feeds through csv which works great, and if unique is checked against a field it skips the content duplication which is a great feature. But I am having a separate requirement.

My requirement is, if a content with title : Test Title, and email : abc-at-test.com already exist in the database, updated either manually or through feeds import, then it should skip the particular row input. all other rows should be imported. If title : Rest Title and email abc-at-test.com exists then it should import all rows.

Is it possible to validate two fields before importing content?

I have a table as follows(attached)