首先添加owa的web servers,地址一般為：https://mail.***.com/EWS/Services.wsdl
其次，在owa上需要建立一個帳戶具有類比其它帳號讀取郵件的許可權，
開啟Exchange 2010 伺服器在命令列中輸入
New-ManagementRoleAssignment -Name:impersonationAssignmentName -Role:ApplicationImpersonation -User:serviceAccount
2007裡面需要將owa設定成window登入，同時在mail伺服器上iis中虛擬目錄ews的目錄安全性裡面取消啟用匿名登入就好了
serviceAccount：就是我們要類比其他人的賬戶
具體代碼：
1 /// <summary>
2 /// get unread emial number
3 /// </summary>
4 /// <returns></returns>
5 protected int GetUnreadMailCount()
6 {
7
8 try
9 {
10 string connectionString = "https://mail.***.cn|SPManager|SCCDU@sps|***.cn";
11
12 int unreadCount = 0;
13
14
15 ///綁定exchange伺服器 這裡你需要添加web引用,https://mail.***.cn/EWS/Exchange.asmx
16 ExchangeServiceBinding exchangeServer = new ExchangeServiceBinding();
17 ///下面這句可以解決:"基礎串連已經關閉: 未能為 SSL/TLS 安全通道建立信任關係"
18 System.Net.ServicePointManager.ServerCertificateValidationCallback =
19 delegate(Object obj, System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Security.Cryptography.X509Certificates.X509Chain chain, System.Net.Security.SslPolicyErrors errors)
20 {
21 return true;
22 };
23 // 建立信任連接
24 //exchangeServer.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
25 //exchangeServer.Credentials = System.Net.CredentialCache.DefaultCredentials;
26 //exchangeServer.UseDefaultCredentials = true;
27 string url = string.Format("{0}/EWS/Exchange.asmx", connectionString);
28 if (connectionString.IndexOf("|") > -1)
29 {
30 string[] strs = connectionString.Split('|');
31 url = string.Format("{0}/EWS/Exchange.asmx", strs[0]);
32 System.Net.NetworkCredential nc = new System.Net.NetworkCredential(strs[1], strs[2], strs[3]);
33 string userEmail = SPContext.Current.Web.CurrentUser.Email;
34 exchangeServer.Credentials = nc;
35 ExchangeImpersonationType exExchangeImpersonation = new ExchangeImpersonationType();
36 ConnectingSIDType csConnectingSid = new ConnectingSIDType();
37 csConnectingSid.PrimarySmtpAddress = userEmail;
38 exExchangeImpersonation.ConnectingSID = csConnectingSid;
39 exchangeServer.ExchangeImpersonation = exExchangeImpersonation;
40 }
41 else
42 {
43 exchangeServer.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
44 }
45
46 exchangeServer.Url = url;
47
48 // 定義郵件的收件匣
49 DistinguishedFolderIdType[] folderIDArray = new DistinguishedFolderIdType[1];
50 folderIDArray[0] = new DistinguishedFolderIdType();
51 folderIDArray[0].Id = DistinguishedFolderIdNameType.inbox;
52
53 FindItemType findItemRequest = new FindItemType();
54 findItemRequest.Traversal = ItemQueryTraversalType.Shallow;
55 ItemResponseShapeType itemProperties = new ItemResponseShapeType();
56 //
57 itemProperties.BaseShape = DefaultShapeNamesType.IdOnly;
58 findItemRequest.ItemShape = itemProperties;
59 findItemRequest.ParentFolderIds = folderIDArray;
60 RestrictionType restriction = new RestrictionType();
61 IsEqualToType isEqualTo = new IsEqualToType();
62 PathToUnindexedFieldType pathToFieldType = new PathToUnindexedFieldType();
63 pathToFieldType.FieldURI = UnindexedFieldURIType.messageIsRead;
64 FieldURIOrConstantType constantType = new FieldURIOrConstantType();
65 ConstantValueType constantValueType = new ConstantValueType();
66 constantValueType.Value = "0";
67 constantType.Item = constantValueType;
68 isEqualTo.Item = pathToFieldType;
69 isEqualTo.FieldURIOrConstant = constantType;
70 restriction.Item = isEqualTo;
71 findItemRequest.Restriction = restriction;
72 //SPSecurity.RunWithElevatedPrivileges(delegate()
73 //{
74 // 擷取郵件
75 FindItemResponseType firt = exchangeServer.FindItem(findItemRequest);
76
77 FindItemResponseMessageType folder = (FindItemResponseMessageType)firt.ResponseMessages.Items[0];
78 ArrayOfRealItemsType folderContents = new ArrayOfRealItemsType();
79 folderContents = (ArrayOfRealItemsType)folder.RootFolder.Item;
80 ItemType[] items = folderContents.Items;
81 unreadCount = items == null ? 0 : items.Length;
82 //});
83 return unreadCount;
84 }
85 catch (Exception ex)
86 {
87 return 0;
88 }
89
90 }
