Update 8/4/2026: We have now fully completed this. All EAS clients older than version 16.1 are not anymore allowed to connect to Exchange Online in all cloud environments.
We want to inform our use...
Updated Aug 04, 2026
Version 3.0
Blog Post
Thanks for the update. If anyone needs a more “admin-friendly” reporting script (CSV export + useful device/mailbox fields, easy filtering for ClientVersion < 16.1) please go to https://azure365addict.com/2025/12/22/reporting-legacy-exchange-activesync-clients-after-mc1197103/