This may seem weird, but interestingly, if you have set up Rocket Chat for the first time and haven't added Email SMTP settings yet, you may encounter this issue: when you log out, Rocket Chat will prompt you to enter a Two-Factor Authentication (2FA) code sent to your email. This should not happen initially because Rocket Chat should check whether SMTP is set up or not. However, there is a solution to this problem. Read on to learn how to disable email 2FA in Rocket Chat.