If it does not then no, I’m not aware of any way to force the other sessions to close. On most email systems that should invalidate any other open sessions, if not instantly, then after the open session times out. Change your passwordįirst things first: yes, change your password. The possibility of walking away while it’s still logged in is really only just one. Unfortunately, there are several reasons that you don’t want to log in to your email account on the computer of someone that you don’t actually trust.