C# Email Send Class

MailSmtp ms = new MailSmtp("","1215247044","xxxx");
     //Optional parameters     ("610262374@");//Cross can be multiple     ("610262374@");//Secret delivery can be multiple     (true);//Default: true     (.UTF8);//Set format default utf-8     (true);//Is SSL encryption default to false     //Calling the function     bool isSuccess = ("1215247044@", "test", "610262374@", "Ha ha", "Ha ha", ("~/"));
     //Output result     (); 

using System;
using ;
using ;
using ;
using ;
using ;
using ;
using ;
namespace SyntacticSugar
{
  /// <summary>
  /// ** Description: Email sent  /// ** Founding date: 2015-6-8  /// ** Modification time:-  /// ** Author: sunkaixuan  /// </summary>
  public class MailSmtp
  {
    /// <summary>
    /// Set the email code type    /// </summary>
    /// <param name="contentEncoding"></param>
    public void SetEncoding(Encoding contentEncoding)
    {
      this._encoding = contentEncoding;
    }
    /// <summary>
    ///Set whether the email text is in Html format    /// </summary>
    /// <param name="isHtml"></param>
    public void SetIsHtml(bool isHtml)
    {
      this._isHtml = isHtml;
    }
    /// <summary>
    /// Cc    /// </summary>
    /// <param name="cc"></param>
    public void SetCC(params string[] cc)
    {
      this._cc = cc;
    }
    /// <summary>
    /// Secret delivery    /// </summary>
    /// <param name="cc"></param>
    public void SetBC(params string[] bc)
    {
      this._bcc = bc;
    }
    /// <summary>
    /// Is SSL encryption    /// </summary>
    /// <param name="isSSL"></param>
    public void SetIsSSL(bool isSSL)
    {
      this._smtp.EnableSsl = isSSL;
    }
    /// <summary>
    /// Constructor    /// </summary>
    /// <param name="host"></param>
    /// <param name="username">Email 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 ((username) || (password))
      {
        this._smtp.UseDefaultCredentials = false;
      }
      else
      {
        this._smtp.Credentials = new NetworkCredential(username, password);
      }
    }
    /// &lt;summary&gt;
    /// Send email    /// &lt;/summary&gt;
    /// <param name="from">Sender email address</param>    /// <param name="sender">Sender display name</param>    /// <param name="to">Recipient address</param>    /// <param name="subject">Email title</param>    /// <param name="body">Email text</param>    /// <param name="file">Attachment address array</param>    /// <returns>Whether the bool succeed </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);
    }
    /// &lt;summary&gt;
    /// Send email    /// &lt;/summary&gt;
    /// <param name="from">Sender email address</param>    /// <param name="sender">Sender display name</param>    /// <param name="to">Recipient address</param>    /// <param name="subject">Email title</param>    /// <param name="body">Email text</param>    /// <param name="file">Attachment address array</param>    /// <returns>Whether the bool succeed </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("");
      }
      if ((oit =&gt; !(oit + "", mailReg)))
      {
         = "The recipient's address is illegal";
        return false;
      }
      if (_bcc != null &amp;&amp; _bcc.Length &gt; 0)
      {
        if (_bcc.Any(oit =&gt; !(oit + "", mailReg)))
        {
           = "Improper address for secret delivery";
          return false;
        }
      }
      if (_cc != null &amp;&amp; _cc.Length &gt; 0)
      {
        if (_cc.Any(oit =&gt; !(oit + "", mailReg)))
        {
           = "The address of the cc sender is illegal";
          return false;
        }
      }
      MailMessage message = new MailMessage();
      // Create an attachment object      foreach (var r in file)
      {
        Attachment objMailAttachment;
        objMailAttachment = new Attachment(r);//Attachment of sending email        (objMailAttachment);
      }
       = new MailAddress(from, sender);
       = subject;
       = this._encoding;
       = body;
       = this._encoding;
       = this._isHtml;
       = ;
      foreach (string str in to)
      {
        (str);
      }
      if (this._bcc != null &amp;&amp; this._bcc.Length &gt; 0)
      {
        foreach (string b in this._bcc)
        {
          (b);
        }
      }
      if (this._cc != null &amp;&amp; this._cc.Length &gt; 0)
      {
        foreach (string c in this._cc)
        {
          (c);
        }
      }
      try
      {
        this._smtp.Send(message);
        return true;
      }
      catch (Exception ex)
      {
        ();
      }
      return false;
    }
    private SmtpClient _smtp = new SmtpClient();
    private Encoding _encoding { get; set; }
    private bool _isHtml { get; set; }
    private string[] _cc { get; set; }
    private string[] _bcc { get; set; }
    /// &lt;summary&gt;
    /// Get the send result, if successful, it will be empty    /// &lt;/summary&gt;
    public string Result { get; private set; }
  }
 
}