Can't find a way to log out of my mail on my IPhone?

I went to Settings>Mail, Contacts, Calendars>and anywhere after that there are no log out/off buttons or delete user, I tried erasing the password but its still log in its like the terminator never going away!

Go to settings>mail and select your account. You can either switch mail to "off" or you can scroll down and delete your account. The account will still exist, it just won't be on your iPhone. There's really no other way to log off like you would on an actual email website.

I usually will just turn the mail off