I am reading emails from our office365, using the examples in your doc:
It works but I do not get any headers in the message, where I have 4 custom headers.
If I use Microsoft own Microsoft.Graph lib and I use code l…...Mime.HeaderCollection} Aspose.Email.Mime.HeaderCollection...{Aspose.Email.Mime.HeaderCollection} Aspose.Email.Mime.HeaderCollection...