EWS操作exchange邮件服务器收发邮件

参考资料： http://www.dotblogs.com.tw/wadehuang36/archive/2012/07/04/ews-first.aspx

本範例的主要功能是尋找未讀郵件並下載附件、完成更新成已讀並移動資料夾

view source print ?

01	internal class Program

02

{

03	private static void Main( string [] args)

04

{

05	ExchangeService es =  new ExchangeService(ExchangeVersion.Exchange2007_SP1); //版本預設值最新版

06	es.Credentials =  new WebCredentials( "username" ,  "password" ,  "domain" );

07	//es.Credentials = new ClientCertificateCredentials(x509); 也可以使用憑證登入

08

09	es.Url =  new Uri( "https://server/EWS/Exchange.asmx" ); // Server路徑

10

11	Folder processedFolder = GetFolder(es);

12	SearchFilter search =  new SearchFilter.IsEqualTo(EmailMessageSchema.IsRead,  false );  //使用欄位搜尋

13	//string search = "From:Wade AND Subject:EWS"; //也支援搜尋語法，但語法沒有IsRead欄位

14

15	//找出 10筆 Inbox 下的未讀郵件

16	foreach (EmailMessage element  in es.FindItems(WellKnownFolderName.Inbox, search,  new ItemView(10)))

17

{

18	//跟IMAP一樣，首先只會下載部分基本資料，像Body與Attachments資訊要呼叫Load才會下載

19	element.Load(PropertySet.FirstClassProperties);

20

21	foreach (FileAttachment item  in element.Attachments)

22

{

23

//下載附檔

24	item.Load( "R:\\" + item.Name);

25

}

26

27	//Do Something

28

29

//更新成已讀

30	element.IsRead =  true ;

31	element.Update(ConflictResolutionMode.AlwaysOverwrite);

32

33	//移動到處理完成資料夾

34	element.Move(processedFolder.Id);

35

}

36

}

37

38	private static Folder GetFolder(ExchangeService es)

39

{

40	//取得 處理完成資料夾，如果沒有資料夾就新增

41	SearchFilter search =  new SearchFilter.IsEqualTo(FolderSchema.DisplayName,  "處理完成" );

42

43	var folder = es.FindFolders(WellKnownFolderName.Inbox, search,  new FolderView(1)).FirstOrDefault();

44	if (folder ==  null )

45

{

46	folder =  new Folder(es);

47	folder.DisplayName =  "處理完成" ;

48	folder.Save(WellKnownFolderName.Inbox);  //在Inbox下新增資料夾

49

}

50

51	return folder;

52

}

53

}