On a few occasions I have noticed that if a response is composed over a prolonged period, around 30 minutes, a draft version is sent to the recipient.
I accidentally overwrote two email drafts erroneously, which saved in those form.  Is there a way to revert them back prior to these overwrites?
*Note: These drafts are neither deleted or sent -- my problem is that I need thems returned to how they were before these saves.

Edit: I've noticed someone who has asked for a similar solution (How to recover a saved draft version after the email has been sent?), but there's no actual solution provided there. So to reemphasize, the solution I'm looking for is to "recover a Previous Generation Draft, which is not doable from the user's end".