Aspose.Email.Examples.CSharp.Email.Exchange.ExchangeImpersonationUsingEWS.Run C# (CSharp) Method

        public static void Run()
        {
            // ExStart:ExchangeImpersonationUsingEWS
            // Create instance's of EWSClient class by giving credentials
            IEWSClient client1 = EWSClient.GetEWSClient("https://outlook.office365.com/ews/exchange.asmx", "testUser1", "pwd", "domain");
            IEWSClient client2 = EWSClient.GetEWSClient("https://outlook.office365.com/ews/exchange.asmx", "testUser2", "pwd", "domain");
            {
                string folder = "Drafts";
                try
                {
                    foreach (ExchangeMessageInfo messageInfo in client1.ListMessages(folder))
                        client1.DeleteMessage(messageInfo.UniqueUri);
                    string subj1 = string.Format("NETWORKNET_33354 {0} {1}", "User", "User1");
                    client1.AppendMessage(folder, new MailMessage("[email protected]", "[email protected]", subj1, ""));

                    foreach (ExchangeMessageInfo messageInfo in client2.ListMessages(folder))
                        client2.DeleteMessage(messageInfo.UniqueUri);
                    string subj2 = string.Format("NETWORKNET_33354 {0} {1}", "User", "User2");
                    client2.AppendMessage(folder, new MailMessage("[email protected]", "[email protected]", subj2, ""));

                    ExchangeMessageInfoCollection messInfoColl = client1.ListMessages(folder);
                    //Assert.AreEqual(1, messInfoColl.Count);
                    //Assert.AreEqual(subj1, messInfoColl[0].Subject);

                    client1.ImpersonateUser(ItemChoice.PrimarySmtpAddress, "[email protected]");
                    ExchangeMessageInfoCollection messInfoColl1 = client1.ListMessages(folder);
                    //Assert.AreEqual(1, messInfoColl1.Count);
                    //Assert.AreEqual(subj2, messInfoColl1[0].Subject);

                    client1.ResetImpersonation();
                    ExchangeMessageInfoCollection messInfoColl2 = client1.ListMessages(folder);
                    //Assert.AreEqual(1, messInfoColl2.Count);
                    //Assert.AreEqual(subj1, messInfoColl2[0].Subject);
                }
                finally
                {
                    try
                    {
                        foreach (ExchangeMessageInfo messageInfo in client1.ListMessages(folder))
                            client1.DeleteMessage(messageInfo.UniqueUri);
                        foreach (ExchangeMessageInfo messageInfo in client2.ListMessages(folder))
                            client2.DeleteMessage(messageInfo.UniqueUri);
                    }
                    catch { }
                }
            }
            // ExEnd:ExchangeImpersonationUsingEWS
        }
    }