Configuring Exchange Web Services (EWS)
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Microsoft have announced that effective 1st October 2026 that they will start blocking EWS Requests from all non-Microsoft Apps to Exchange Online.
Exchange Web Services (EWS) is one of the supported methods to connect ASM to your Incoming or Outgoing Email Server(s).
This should not affect EWS via Exchange Server. Please confirm this with your Microsoft Account Manager.
Alemba recommends configuring and testing ASM Email servers to connect to Exchange Online via the MS Graph API Protocol. Information is available on how to configure this below.
Exchange Web Services (EWS) is a system of reference that enables enterprise business applications to access commonly shared source data in a scalable, real-time, and highly available architecture. The pages that follow will guide you through configuring EWS for email.