In certain environments, the user may experience an issue when attempting to authenticate with the Exchange Manipulator SE plug-in without providing the user name and password while logged into a Windows account that is part of the Exchange Server’s domain. The error message “The Autodiscover service could not be found” might come up when performing PCEX_Authenticate and providing only the email address. Currently, there is no known cause for this particular issue, though a workaround has been found and verified.

To work around this issue, the developer should ensure that the scripting to authenticate to an Exchange account includes the user name and password. Additionally, a new parameter has been added to PCEX_Authenticate that allows the developer to specify the Autodiscover URL as an “override”.

More information about how the Autodiscover URL, including example URL formats, can be found at the following link:
https://docs.microsoft.com/en-us/exchange/client-developer/exchange-web-services/autodiscover-for-exchange