Hi,
Our customer reported us that they had a lot of logons and logoffs in their logging from our application. When testing this with Fiddler on my own system it seems each POST is done twice with the first attempt always failing with a 401 (Unauthorized) and the 2nd attempt succeeding.
Whether I am requesting the mailboxinfo, a list of subfolders or something else, the above always occurs.
I attached a screenshot from Fiddler with the requests I made, and also the full webrequests.
I am initializing my EWS client once with username and password, and reusing it for other requests.
Is this normal behaviour or am I missing something? Or could it be caused by the Fiddler interception itself?
Best RegardsDesktop.zip (19.6 KB)