Add the Web servers of OWA. The address is https: // mail. ***. com/EWS/services. WSDL.
Second, you need to create an account on OWA with the permission to simulate other accounts to read emails,
Open the exchange 2010 server and enter
New-managementroleassignment-Name: impersonationassignmentname-Role: applicationimpersonation-user: serviceaccount
In 2007, you need to set OWA to window logon, and disable anonymous logon in the Directory Security of the virtual directory EWS in IIS on the mail server.
Serviceaccount: the account of another user.
Code:
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 // bind the Exchange Server. here you need to add a web reference, https: // mail. ***. CN/EWS/exchange. asmx
16 exchangeservicebinding exchangeserver = new exchangeservicebinding ();
17 // The following sentence can be solved: "The basic connection has been closed: the trust relationship cannot be established for the SSL/TLS security channel"
18 system. net. servicepointmanager. servercertificatevalidationcallback =
19 delegate (Object OBJ, system. Security. cryptography. x509certificates. x509certificate certificate, system. Security. cryptography. x509certificates. x509chain chain, system. net. Security. assumerrors)
20 {
21 return true;
22 };
23 // establish a trusted connection
24 // exchangeserver. Credentials = system. net. credentialcache. defaultnetworkcredentials;
25 // exchangeserver. Credentials = system. net. credentialcache. defaultcredentials;
26 // exchangeserver. usedefadefacredentials = 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 exexexchangeimpersonation = new exchangeimpersonationtype ();
36 connectingsidtype csconnectingsid = new connectingsidtype ();
37 csconnectingsid. primarysmtpaddress = useremail;
38 exexchangeimpersonation. connectingsid = csconnectingsid;
39 exchangeserver. exchangeimpersonation = exexexchangeimpersonation;
40}
41 else
42 {
43 exchangeserver. Credentials = system. net. credentialcache. defaultnetworkcredentials;
44}
45
46 exchangeserver. url = URL;
47
48 // define the inbox of the email
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 isto to = new isequaltotype ();
62 pathtounindexedfieldtype pathtofieldtype = new pathtounindexedfieldtype ();
63 pathtofieldtype. fielduri = unindexedfielduritype. messageisread;
64 fielduriorconstanttype constanttype = new fielduriorconstanttype ();
65 constantvaluetype = new constantvaluetype ();
66 constantvaluetype. value = "0 ";
67 constanttype. Item = constantvaluetype;
68 isequalto. Item = pathtofieldtype;
69 iseries to. fielduriorconstant = constanttype;
70 restriction. Item = isdue;
71 finditemrequest. Restriction = restriction;
72 // spsecurity. runwithelevatedprivileges (delegate ()
73 //{
74 // get the email
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}
