Receive OTP as part of email | Classic Universal Login

Feature: Receive OTP as part of email | Classic Universal Login

Description:
Receive OTP as part of email : Currently we have enabled to receive OTP through SMS and Authenticator app. We need to extend this functionality to emails where users can opt for emails to receive their OTP during Login. We are currently using Classic Login of Auth0

Use-case: Customer Portal - Users requesting for OTP via email, SMS and Authenticator app