Authentication error after Exchange Extended Protection was enabled

Garethp / php-ews

PHP Exchange Web Services

BSD 3-Clause "New" or "Revised" License

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Authentication error after Exchange Extended Protection was enabled #261

Open Lxxrxns opened 7 months ago

Lxxrxns commented 7 months ago

After a company I use php-ews for enabled Extended Protection, authentication now fails.

Found this on jamesiarmes' version:

https://github.com/jamesiarmes/php-ews/issues/621

Could it be that garethp's version is also affected? How can we fix this?

More info:

https://learn.microsoft.com/en-us/exchange/plan-and-deploy/post-installation-tasks/security-best-practices/exchange-extended-protection?view=exchserver-2019

Carlmundo commented 7 months ago

@Lxxrxns Did you ever find a solution for this?

Lxxrxns commented 6 months ago

Sadly no. No solution yet. We're trying a work-around now where we shortly disable Extended Protection when we want to sync :') and immediately turn it back on afterwards...