Do you have a way to build in guest accounts that will expire after X hours / days? Hearing 'sign in without logging in' makes me cringe, but I can see why you

Do you have a way to build in guest accounts that will expire after X hours / days? Hearing 'sign in without logging in' makes me cringe, but I can see why you would want to do this. I hear what Joachim said that it really is no worse that being able to recover password via email, but it seems there might be more opportunity for a single email to go astray (or accidentally forwarded) than an entire account to be hijacked.