hope this isn't a stupid question, but I was getting a headache looking at the EWS API. Can someone point me to where I need to look to create an org wide transport rule? All I'm trying to do is display a warning at the top of the email if the incoming message has a name that matches an email user in the company but the "real" email address is different. Just phishing insurance. Any pointers before I go blind staring at this thing? Thanks!
I doubt it matters for the API question, but this will be running in an Azure function looping through a Microsoft Partner's customers.