Yes, please! Very much needed in emails, lists, and workflows too!
we need this asap
Yes, definitely a great idea. It’s rather messy the way it is right now for such a fantastic tool!
My account needs this! Hope it can be actioned over the next few months.
I see this has not been implemented yet… 
I think this is an essential NEED as companies start to grow and increase their external and internal communication frequencies.
I would also suggest a Folder Column to see where emails have been moved to for easy reference.