关于C#读取Exchange服务器邮件时报错：“此XML文档中禁用DTD”

怪兽在找我 2019-02-21 04:37:20

各位大佬好，
项目需求需要一个读取Exchange邮箱邮件的功能
网上查了一段代码分别为读取/发送邮件，运行后发送邮件功能正常执行，但是读取邮件的时候报错
这个报错找了好久没有头绪

；
一个大写加粗的SOS
读取代码如下：



public void GetInbox(string userId, string pwd, string domain, int pageSize, int offset)

        {

            try

            {

                if (string.IsNullOrEmpty(userId) || string.IsNullOrEmpty(pwd) || string.IsNullOrEmpty(domain))

                {

                    throw new ArgumentNullException("当前用户信息为空，无法访问exchange服务器");

                }

                _exchangeService.Credentials = new NetworkCredential(userId, pwd, domain);

                _exchangeService.Url = new Uri("http://mail.jj-inn.com");

                //XmlReaderSettings settings = new XmlReaderSettings();//网上找的报错解决方案

                //settings.ProhibitDtd = false;//网上找的报错解决方案

                //settings.Schemas.Add(null, "http://www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd");//网上找的报错解决方案

                ItemView view = new ItemView(pageSize, offset);

                SearchFilter SF = SetFilter();

                FindItemsResults<Item> findResults;

                findResults = _exchangeService.FindItems(WellKnownFolderName.Inbox, SF, view);//此处报错：此XML文档中禁用DTD

                //foreach (Item item in findResults.Items)

                //{

                Item item = findResults.Items[0];

                    item.Load(PropertySet.FirstClassProperties);

                    //转化为EmailMessage获取 获取邮件详情

                    var currentEmail = (Microsoft.Exchange.WebServices.Data.EmailMessage)(item);

                    List<string> ccRecipientsEmailLists = new List<string>();

                    List<string> bccRecipientsEmailLists = new List<string>();

                    foreach (var cc in currentEmail.CcRecipients)

                    {

                        ccRecipientsEmailLists.Add(cc.Address);

                    }

                    foreach (var bcc in currentEmail.BccRecipients)

                    {

                        bccRecipientsEmailLists.Add(bcc.Address);

                    }

                    string ExchangeItemId = item.Id.ChangeKey;

                    string body = item.Body.Text;

                    string Mail_cc = string.Join(";", ccRecipientsEmailLists.ToArray());

                    string Mail_bcc = string.Join(";", bccRecipientsEmailLists.ToArray());

                    string Mail_from = currentEmail.From.Address;

                    Boolean IsRead = item.IsNew;

                    string Subject = item.Subject;

                    DateTime CreateOn = item.DateTimeCreated;

                //}

            }

            catch (Exception ex)

            {

                throw ex;

            }



        }