C # connect Exchange send mail

C # Connect Exchange send mail code as follows

<summary>///Exchange bulk mail///</summary>//<param name= "Credentialusername" >        Exchange user name [example:test]</param>//<param name= "credentialuserpwd" >exchange user password </param> <param name= "Fromemail" > Sender Address [Example: [email protected]]</param>//<param name=] Reci Pientemail "> Recipient address </param>//<param name=" DomainName "> Mail domain name [EXAMPLE:MAIL.ALLBRING.COM]&LT;/PARAM&G        T <param name= "Subjectname" > Email subject </param>//<param name= "bodyval" > Message content </param>// /<param name= "ishtml" > whether html</param>//<param name= "Filearray" > Send upload path </param>/ <returns></returns>//Developer: ZJ public static bool Sendexchangeemails (String Credentialuserna Me, String credentialuserpwd, String fromemail, list<string> recipientemail, String domainName, String subjectname , String Bodyval, bool ishtml, string[] filearray) {try {mailmessage message = new Mailmessa                GE ();                MailAddress fromaddress = new MailAddress (fromemail); foreach (string item in Recipientemail) {message.                To.add (item); } message.                from = fromaddress; Message.                Subject = Subjectname; Message.                Body = Bodyval; Message.                isbodyhtml = ishtml;                    if (Filearray! = null) {for (int i = 0; i < filearray.length; i++) {//Create file attachment for message Attachment attr = new Attachment (Filearray[i], mediatypename                        S.application.octet); Add message timestamp information contentdisposition Condispositon = attr.                        Contentdisposition; Condispositon.creationdate = System.IO.File.GetCreationTime (Filearray[i]);//FileCreation Date Condispositon.modificationdate = System.IO.File.GetLastWriteTime (Filearray[i]);//Modified date of File                        Condispositon.readdate = System.IO.File.GetLastAccessTime (Filearray[i]);//Read date of File Add an attachment message to the message.                    Attachments.Add (attr);                }} smtpclient SmtpClient = new SmtpClient ();                Smtpclient.timeout = 50000;                Smtpclient.host = DomainName;                Smtpclient.port = 25;                Smtpclient.usedefaultcredentials = false;                Smtpclient.credentials = new System.Net.NetworkCredential (Credentialusername, credentialuserpwd);                Smtpclient.enablessl = true;                Smtpclient.deliverymethod = Smtpdeliverymethod.network;                Smtpclient.send (message);                Smtpclient.dispose ();            return true; } catch (Exception) {return FALSe }        }

Reference Address: https://social.technet.microsoft.com/Forums/en-US/d37c7e8a-6d42-498a-bad4-5eb0ab7e9d40/ Connecting-to-exchange-server-using-c-to-send-an-email?forum=exchangesvrdevelopment

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C # connect Exchange send mail