EWS throttling in Exchange | Microsoft Docs
docs.microsoft.com › ews-throttling-in-exchangeAug 30, 2021 · Throttling considerations for applications that use EWS impersonation Impersonation is an authorization method that enables a single account to access many accounts. When a service account impersonates users, it acts as the users and therefore assumes the rights that are assigned to those users. Log files record the access as the impersonated user.