Unique: jerry email: jerry@b.com
Unique: pete email: pete@here.com
Dups: Joe email:  joe@test.com
 email:  joe@test.com
Dups: John email:  John@test.com
 email:  John@ok.com
Unique: amy email: amy@ok.com
Dups: ann email:  ann@nowhere.com
 email:  ann@nowhere.com
Unique: mary email: mary@test.com