The Email OTP authentication method sends an email to your email address with a one-time password (OTP). You can use this OTP to authenticate withing a certain time frame.
This authenticator enrolls automatically and it's not possible to remove it.
To test the enrolled authenticator follow the steps below:
Click the Email OTP icon in the Enrolled methods section.
Ensure that your email address (specified after the text The email address your One-Time Password is sent to is:) is valid. Contact your system administrator to change the email address if it's invalid.
Click Test button. In few seconds you will see a message OTP password sent, please enter.
Check your email. You should get an email message with one-time password.
Enter the OTP to the Password field.
Click Next. You will see a message Authenticator "Email OTP" passed the test. If the provided authenticator is invalid you will see a message Wrong answer, try again.