My understanding is that EAS does not support modern authentication and is a legacy protocol and therefore mfa (or duo) will not work with eas. Is this true till this date?
Does EWS carry the same limitation here?
I currently have all my mailboxes on Exchange online and about 10 mailboxes on Exchange 2016 onpremise. Am i at any risks by have EAS enabled for all mailboxes and EWS enabled as well?
ms