Is Two-Factor authentication mail able to be sent to the email address from the Active Directory?

Zyxel_Emily

Enable Two-Factor Authentication for VPN access and move ad-users to selected User/Group.

On Active Directory, configure email address for the ad user “user3”.

Make sure the email address is also shown in Attribute Editor > mail.

Mail is sent to the AD user “user3”.

In MONITOR > Login Users, user3 logged in as SSL VPN (two factor) and ad-user.