public void GetEmailClientUsage() { Campaign campaign = new Campaign(auth, campaignID); try { var usage = campaign.EmailClientUsage(); foreach (EmailClient client in usage) Console.WriteLine("{0} ({1}): used by %{2} ({3} subscribers)", client.Client, client.Version, client.Percentage, client.Subscribers); } catch (CreatesendException ex) { ErrorResult error = (ErrorResult)ex.Data["ErrorResult"]; Console.WriteLine(error.Code); Console.WriteLine(error.Message); } catch (Exception ex) { Console.WriteLine(ex.ToString()); } }