Use this page to add IP addresses that you wish to be exceptions to the two factor authentication (2FA) requirement. When a user's account is configured to use 2FA but that user connects to Webmail from one of these addresses, 2FA will not be required.
Do not apply the Exception IPs for certain users
For added security you can still require 2FA for the various types of administrators, even when they are connecting from exempted IP addresses. Use these options if you do not wish to allow the 2FA exceptions for Global, Domain, or List Administrators. Note: A user that is assigned multiple administrative roles is subject to the rules for each assigned administrator role.