New-AuthenticationPolicy "Block Modern Auth" -BlockModernAuthWebServices -BlockModernAuthActiveSync -BlockModernAuthAutodiscover -BlockModernAuthImap -BlockModernAuthMapi -BlockModernAuthOfflineAddressBook -BlockModernAuthPop -BlockModernAuthRpc

New-AuthenticationPolicy "Allow Modern Auth"

New-AuthenticationPolicy "Allow ONLY Modern Auth" -BlockLegacyAuthImap -BlockLegacyAuthActiveSync -BlockLegacyAuthOfflineAddressBook -BlockLegacyAuthRpc -BlockLegacyAuthWebServices -BlockLegacyAuthAutodiscover -BlockLegacyAuthMapi -BlockLegacyAuthPop