Undo email conversations/thread
On El Capitan OSX 10.11.2, how do you undo email threads/conversations?
MacBook Pro (Retina, 13-inch, Late 2012), OS X El Capitan (10.11.2)
Assuming you are using the Mail app, go to menu bar > View > UNcheck organize by conversation and, go to Mail Preferences and make sure that nothing is checked in Viewing tab under "view conversations".