I'm using EWS on an Exchange 2007 with basic authentication. I'm calling just the FindItems() method and the transaction log seem to grow alarmingly.
On my test server I ran an endless loop calling FindItems() and the logs grew with 1 MB per 5-6 minutes. In an production environment, calling this would cause a growth of 1 MB per 10-15 seconds!
Why does the transaction log grow when I only make read-only requests to the EWS?