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Published Option
Default Value: https://login.microsoftonline.com
Valid Values: The valid Microsoft authority server is https://login.microsoftonline.com. The valid Google authority server is a case-insensitive string that contains "google".
Changes Take Effect: At start/restart
Introduced: 8.5.107.06
Modified: 8.5.201.05, 8.5.202.02, 8.5.205.03
Specifies the authority server of the registered Microsoft Azure application for the Office 365 or the Google application for the Gmail SMTP account in the SMTP client. This parameter takes effect only when the mail.<server-type>.auth.mechanisms is set to XOAUTH2 or type is GRAPH.
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