C#实现发送邮件的方法

本文实例为大家分享了Android九宫格图片展示的具体代码，供大家参考，具体内容如下

#region 发送邮件部分
    private static String fromMail = "1111@126.com";  ///邮箱名称
    private static String mailPwd = "111111";     ///密码
    private static string toMail = "2222@163.com";  ///邮箱服务器
    private static string fileStr;//当前图片路径，在添加附件时用
    /// 

    /// 发送邮件
    /// 
    /// 附件地址，以~分
    /// 是否发送截屏
    /// 
    public static string SendMail(string fileUrl, string screen)
    {
     
      MailAddress from = new MailAddress(fromMail);
      MailAddress to = new MailAddress(toMail);

      MailMessage message = new MailMessage(from, to);
      message.Subject = "M邮件 " +11111;//主题
      message.SubjectEncoding = System.Text.Encoding.UTF8;

      Attachment attachFile = new Attachment(fileStr);
      if (screen == "True")
 message.Attachments.Add(attachFile);

      string[] files = fileUrl.Split('~');
      for (int i = 0; i < files.Length; i++)
      {
 if (File.Exists(files[i]))
 {
   Attachment attachFile1 = new Attachment(fileUrl);
   message.Attachments.Add(attachFile1);
 }
      }

      try
      {
 SmtpClient client = new SmtpClient("smtp." + from.Host);

 SendMail(client, from, mailPwd, to, message);


 return "发送邮件成功！包含附件：" + fileUrl + " 含截图？" + screen + "  " + DateTime.Now.ToString();
      }
      catch (SmtpException ex)
      {
 //如果错误原因是没有找到服务器，则尝试不加smtp.前缀的服务器
 if (ex.StatusCode == SmtpStatusCode.GeneralFailure)
 {
   try
   {
     //有些邮件服务器不加smtp.前缀
     SmtpClient client = new SmtpClient(from.Host);
     SendMail(client, from, mailPwd, to, message);
   
     return "发送邮件成功！包含附件：" + fileUrl + " 含截图？" + screen + "  " + DateTime.Now.ToString();

   }
   catch (SmtpException err)
   {
    
     return "发送邮件失败！" + err.Message + "  " + DateTime.Now.ToString();
   }
 }
 else
 {
  
   return "发送邮件失败！" + ex.Message + "  " + DateTime.Now.ToString();
 }
      }
    }

    //根据指定的参数发送邮件
    private static void SendMail(SmtpClient client, MailAddress from, string password,
MailAddress to, MailMessage message)
    {
      //不使用默认凭证,注意此句必须放在client.Credentials的上面
      client.UseDefaultCredentials = false;
      //指定用户名、密码
      client.Credentials = new NetworkCredential(from.Address, password);
      //邮件通过网络发送到服务器
      client.DeliveryMethod = SmtpDeliveryMethod.Network;
      try
      {
 client.Send(message);
      }
      catch
      {
 throw;
      }
      finally
      {
 //及时释放占用的资源
 message.Dispose();
      }
    }

    #endregion

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