public static void Run()
        {
            // ExStart:ExchangeFoldersBackupToPST
            string dataDir = RunExamples.GetDataDir_Exchange();
            // Create instance of IEWSClient class by providing credentials
            const string      mailboxUri = "https://ews.domain.com/ews/Exchange.asmx";
            const string      domain     = @"";
            const string      username   = @"username";
            const string      password   = @"password";
            NetworkCredential credential = new NetworkCredential(username, password, domain);
            IEWSClient        client     = EWSClient.GetEWSClient(mailboxUri, credential);

            // Get Exchange mailbox info of other email account
            ExchangeMailboxInfo          mailboxInfo = client.GetMailboxInfo();
            ExchangeFolderInfo           info        = client.GetFolderInfo(mailboxInfo.InboxUri);
            ExchangeFolderInfoCollection fc          = new ExchangeFolderInfoCollection();

            fc.Add(info);
            client.Backup(fc, dataDir + "Backup_out.pst", Aspose.Email.Outlook.Pst.BackupOptions.None);
            // ExEnd:ExchangeFoldersBackupToPST
        }