EWS retires in Exchange Online starting October 1, 2026 , with full removal by April 1, 2027 . What is the plan for the eM Client? This is a quote from Microsoft when I contacted them for alternative solutions. “Worth flagging to them that eM Client should be on its Microsoft Graph / modern-auth connection path, not EWS, going forward…”
We plan to switch to Microsoft Graph in eM Client 11.
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