C# (CSharp) Microsoft.Exchange.Clients.Owa2.Server.Core CancelAttachmentManager.CancellationItem - 2 examples found. These are the top rated real world C# (CSharp) examples of Microsoft.Exchange.Clients.Owa2.Server.Core.CancelAttachmentManager.CancellationItem extracted from open source projects. You can rate examples to help us improve the quality of examples.