Microsoft will shut down Exchange Web Services in Exchange Online in October 2026 September 19, 2023 by admin Tweet Microsoft was not releasing feature updates for Exchange Web Services in Exchange Online and now says it will block EWS requests from non-Microsoft apps to Exchange Online starting Oct. 1, 2026. Read more… Neowin Related Posts:With Basic Auth in Exchange Online dead, this is…Microsoft is 'reimagining' archiving processes in…Microsoft confirms massive issues and outage across…Microsoft announces it will soon update its Exchange…Microsoft gives final warning about Basic Auth…