Update: The full timeline for retirement of Basic Authentication in Exchange Online is now published in Basic Authentication Deprecation in Exchange Online – September 2022 Update.
Today we are ple...
Updated Sep 01, 2022
Version 7.0
Blog Post
We continue to see basic auth requirements for autodiscover for some hybrid migrations.
https://docs.microsoft.com/en-us/outlook/troubleshoot/authentication/outlook-prompt-password-modern-authentication-enabled
One issue we have had in the past is outlook clients on unmanaged devices where the reg key cannot be pushed automatically. Often users (if allowed... another topic completely!) install office and setup outlook on local unmanaged devices. Particularly during COVID!
As RPC is still supported on prem, if basic auth for autodiscover in EXO is disabled how will we be able to address these unmanaged devices other than letting them log a support ticket or trying to track these users. I have a headache already just thinking about it!
Any thoughts or workarounds would be much appreciated!
https://docs.microsoft.com/en-us/exchange/troubleshoot/accessing-email-data/rpc-over-http-end-of-support#does-this-end-of-support-in-office-365-affect-customers-using-exchange-server-2007-exchange-server-2010-exchange-server-2013-orexchange-server-2016