I am trying to empty my DeletedItems folder on Office365 through OWA. It just ignores my requests and next refresh I see still all emails are there. Outlook client takes a long time to download because in DeletedItems there are around 40 GB of emails.
Hence I wrote a small piece of console application
using Microsoft.Exchange.WebServices; using Microsoft.Exchange.WebServices.Auth; using Microsoft.Exchange.WebServices.Data;