C # mailbox Mail Send Class

The functionality of this class includes sending the message, the correct mailbox format, and determining the correct mailbox username and password without sending the message, and resolving the problem with an asynchronous thread, given that the pop checks the mailbox user name and password for the delay in returning the result of the error, see Code

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MAILSMTP ms = new MAILSMTP ("smtp.qq.com", "1215247044", "xxxx"); Optional parameter Ms. SETCC ("610262374@qq.com");/CC can be multiple Ms. SETBC ("610262374@qq.com");//Dark send can be multiple Ms. Setishtml (TRUE);//default: True Ms. Setencoding (System.Text.Encoding.UTF8);//Set format default Utf-8 Ms. Setisssl (TRUE);//Whether SSL encryption defaults to FALSE//Call function bool Issuccess = Ms. Send ("1215247044@qq.com", "Test", "610262374@qq.com", "haha", "haha", Server.MapPath ("~/test.dll")); Output Results Response.Write (Ms. result);

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Using System; Using System.IO; Using System.Web.UI.WebControls; Using System.Text; Using System.Net.Mail; Using System.Net; Using System.Linq; Using System.Text.RegularExpressions; namespace Syntacticsugar {///<summary>///* * Description: Mail///* * Founder Time: 2015-6-8///* * Modified:-///* * Author: Sunkaixuan/// </summary> public class Mailsmtp {///<summary>///setting message encoding type///</summary>///<param name= "content Encoding "></param> public void setencoding (Encoding contentencoding) {this._encoding = contentencoding;}///& Lt;summary>///to set whether the message body is Html///</summary>///<param name= "ishtml" ></param> public void Setish TML (bool ishtml) {this._ishtml = ishtml;}///<summary>///cc///</summary>///<param name= "CC" >&lt ;/param> public void SETCC (params string[] cc) {this._cc = cc;///<summary>///Dark send///</summary>///& Lt;param name= "CC" ></param> public void SETBC (params string[] BC) {THIS._BCC = bc }///<summary>///SSL encryption///</summary>///<param name= "Isssl" ></param> public void Setisssl (b Ool Isssl) {this._smtp. Enablessl = Isssl; ///<summary>///Constructor///</summary>///<param name= "host" ></param>///<param name= "Userna" Me > Mail account </param>///<param name= "password" > Password </param> public mailsmtp (string host, String Username, string password) {this._smtp. host = host; This._smtp. Port = 0x19; This._smtp. Enablessl = false; This._ishtml = true; this._encoding = Encoding.UTF8; if (string. IsNullOrEmpty (username) | | String. IsNullOrEmpty (password)) {this._smtp. useDefaultCredentials = false; else {this._smtp. Credentials = new NetworkCredential (username, password); }///<summary>///send mail///</summary>///<param name= "from" > Sender email address </param>///<param nam E= "Sender" > Sender display name </param>///<param name= "to" > Recipient address </param>///<param name= "Subject" > Message Title </param>///<param name= "Body" > Message text </param>///<param name= "file" > Attachment address array </param>///< Returns>bool Success </returns> public bool Send (string from, string sender, String to, string subject, String body, Params string[] File {return send (from, sender, new string[] {to}, subject, body, file);///<summary>///Send Mail///</summary>///<param name= "from" > Senders mail address </param>///<param name= "Sender" > Sender display Name </ param>///<param name= "to" > Recipient address </param>///<param name= "subject" > Message title </param>///< param name= "Body" > Message text </param>///<param name= "file" > Attachment address array </param>///<returns>bool Success </returns> public bool Send (string from, string sender, string[] to, string subject, String body, params string [] File {string mailreg = @ "^[w-]+ (. [ w-]+) *@[w-]+ (. [ w-]+) +$ "; if (to = = null) {throw new ArgumentNullException ("MailSmtp.Send.to");} if (to. Any (OIT =>!) Regex.ismaTCH (Oit + "", Mailreg))) {this. result = "The recipient address is not valid"; return false; } if (_bcc!= null && _bcc. Length > 0) {if (_BCC). Any (OIT =>!) Regex.IsMatch (Oit + "", Mailreg))) {this. result = "Dark Sender address is not lawful"; return false; } if (_cc!= null && _cc. Length > 0) {if (_CC). Any (OIT =>!) Regex.IsMatch (Oit + "", Mailreg))) {this. result = "CC address is illegal"; return false; } mailmessage message = new MailMessage (); Create an Attachment object foreach (var r in file) {attachment objmailattachment; objmailattachment = new Attachment (r);//Send message attachment Messag E.attachments.add (objmailattachment); } message. from = new MailAddress (from, sender); Message. Subject = Subject; Message. subjectencoding = this._encoding; Message. BODY = body; Message. bodyencoding = this._encoding; Message. isbodyhtml = this._ishtml; Message. Priority = Mailpriority.normal; foreach (String str in to) {message. To.add (str); } if (this._bcc!= null && this._bcc. Length > 0) {foreach (string B in this._bcc) {message. Bcc.add (b); } IF (this._cc!= null && this._cc. Length > 0) {foreach (string C in this._cc) {message. Cc. ADD (c); } try {this._smtp. Send (message); return true; The catch (Exception ex) {Console.WriteLine (ex). message); return false; Private SmtpClient _smtp = new SmtpClient (); Private Encoding _encoding {get; set;} private bool _ishtml {get; set;} private string[] _cc {get; set;} Private str Ing[] _BCC {get; set;}///<summary>///gets the send result, the success is null///</summary> public string Results {got; private set ; }}  }

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