I tried the default E-mail app on my Moto Z Force Droid. Didn't like it, but can't find a way to actually remove the email from that app?
I can stop it from syncing, bit can't actually remove the account?
You can disable it...that's it.
Wait, can't you go into settings / accounts and, under email, actually delete the email account from there? (Don't have a Z Force, but all previous Moto Droids going back to the 2013 Maxx allow this.)
IIRC, you have to click on the account and then there is an option or a settings spot to delete it from
Swipe at the name of the email rather than long-press?
Or, in the settings app, find the account, tap it. Tap the three button menu control top right, tap remove account?
(When I say the settings app, I don't mean the settings in the email app itself. I mean home, open list of apps, find settings, your list of accounts should be in there.)