获取消息传递状态 EWS

Question

我需要使用 Exchange Web 服务 API 发送消息，然后检查它们是否已送达。为此，我尝试使用 EWS 跟踪，但日志文件始终提供 NoError 状态，即使我发送的电子邮件不存在。 现在我正在尝试获取 SentItems 文件夹中的最后一条消息并检查它们的属性，但我找不到传递状态的属性。我能用它做什么？ 我现在的代码：

private void checkDeliveryStatuses(ExchangeService service)
    {
        ItemView itemview = new ItemView(10);
        itemview.PropertySet = new PropertySet(BasePropertySet.IdOnly, EmailMessageSchema.InternetMessageId, *some property for status*);
        FindItemsResults<Item> newMessages = service.FindItems(WellKnownFolderName.SentItems, itemview);
        foreach (Item item in newMessages)
        {
            EmailMessage msg = item as EmailMessage; 
            //Somehow get delivery status here
        }
     }

Answer 1

传递状态不会存储在 SentItems 文件夹中存储的消息副本上，因此您尝试执行的操作不会像您尝试使用它的方式那样起作用。 EWS 有一些消息跟踪操作，您可以尝试使用 https://msdn.microsoft.com/en-us/library/office/bb409286(v=exchg.150).aspx#bk_message_tracking 在 EWS 托管 API 中不支持使用这些操作，因此如果您想使用它们，您将需要使用 RAW SOAP 或代理对象，例如

ExchangeServiceBinding esb = new ExchangeServiceBinding();
esb.Credentials = new NetworkCredential("username", "password", "domain");
esb.Url = "https://servername/EWS/Exchange.asmx";
esb.RequestServerVersionValue = new RequestServerVersion();
esb.RequestServerVersionValue.Version = ExchangeVersionType.Exchange2010_SP1;
ReplyToItemType riRepItem = new ReplyToItemType();
FindMessageTrackingReportRequestType fmtRequest = new FindMessageTrackingReportRequestType();
fmtRequest.Scope = "Organization";
fmtRequest.StartDateTime = DateTime.Now.AddDays(-4);
fmtRequest.Sender = new EmailAddressType();
fmtRequest.Sender.EmailAddress = "administrator@msgdevelop.com";
fmtRequest.Domain = "msgdevelop.com";
fmtRequest.StartDateTimeSpecified = true;
FindMessageTrackingReportResponseMessageType fmtResponse = esb.FindMessageTrackingReport(fmtRequest);
foreach (FindMessageTrackingSearchResultType fmtSearchResult in fmtResponse.MessageTrackingSearchResults)
{
Console.WriteLine(fmtSearchResult.MessageTrackingReportId);
GetMessageTrackingReportRequestType gmt = new GetMessageTrackingReportRequestType();
gmt.MessageTrackingReportId = fmtSearchResult.MessageTrackingReportId;
gmt.Scope = "Organization";
gmt.ReportTemplate = MessageTrackingReportTemplateType.Summary;
GetMessageTrackingReportResponseMessageType gmtResponse = esb.GetMessageTrackingReport(gmt);
foreach (RecipientTrackingEventType rte in gmtResponse.MessageTrackingReport.RecipientTrackingEvents)
{
    Console.WriteLine(rte.EventDescription);
    Console.WriteLine(rte.DeliveryStatus);
}
}