SplunkMailProcessor Processes mail messages from a Exchange/Office365 mailbox and ingests them as alerts into Splunk See these pages for setup within Office365/Azure/Exchange and explaination of auth code https://learn.microsoft.com/en-us/exchange/client-developer/exchange-web-services/how-to-authenticate-an-ews-application-by-using-oauth https://learn.microsoft.com/en-us/graph/auth-limit-mailbox-access