SendEmail

///    <summary>
                ///    发送邮件
                ///    </summary>
                ///    <param   name= "strSmtpServer "> smtp地址 </param>
                ///    <param   name= "UserName "> 用户名 </param>
                ///    <param   name= "Password "> 密码 </param>
                ///    <param   name= "strFrom "> 发信人地址 </param>
                ///    <param   name= "strto "> 收信人地址 </param>
                ///    <param   name= "strSubject "> 邮件标题 </param>
                ///    <param   name= "strBody "> 邮件正文 </param>
                public    static    void    SendMail( string    strSmtpServer,   string    UserName,   string    Password,   string    strFrom,   string    strto,   string    strSubject,   string    strBody,   string    strFileName)
                {
                        // 生成一个   使用SMTP发送邮件的客户端对象
                        System.Net.Mail.SmtpClient   client   =    new    System.Net.Mail.SmtpClient(strSmtpServer);

                        // 表示以当前登录用户的默认凭据进行身份验证
                        client.UseDefaultCredentials   =    true ;

         

                        // 包含用户名和密码
                        client.Credentials   =    new    System.Net.NetworkCredential(UserName,   Password);

                          // 指定如何发送电子邮件。
                          // Network                                             电子邮件通过网络发送到   SMTP   服务器。    
                          // PickupDirectoryFromIis               将电子邮件复制到挑选目录，然后通过本地   Internet   信息服务   (IIS)   传送。    
                          // SpecifiedPickupDirectory           将电子邮件复制到   SmtpClient.PickupDirectoryLocation   属性指定的目录，然后由外部应用程序传送。    

                        client.DeliveryMethod   =    System.Net.Mail.SmtpDeliveryMethod.Network;

                        // 建立邮件对象  
                        System.Net.Mail.MailMessage   message   =    new    System.Net.Mail.MailMessage(strFrom,   strto,   strSubject,strBody);
                       
                        // 定义邮件正文，主题的编码方式
                        message.BodyEncoding   =    System.Text.Encoding.GetEncoding( " gb2312 " );
                        message.SubjectEncoding   =    System.Text.Encoding.GetEncoding( " gb2312 " );
                     
                        // 获取或设置一个值，该值指示电子邮件正文是否为   HTML。  
                        message.IsBodyHtml   =    false ;
                       
                        // 指定邮件优先级
         
                        message.Priority   =    System.Net.Mail.MailPriority.Normal;

                        // 添加附件
                        // System.Web.Mail.MailAttachment   mailAttachment=new   System.Web.Mail.MailAttachment(@ "f:/baihe.txt ");  
                        if    (strFileName   !=    " "    &&    strFileName   !=    null )
                        {
                                Attachment   data   =    new    Attachment(strFileName);
                                message.Attachments.Add(data);
                        }
                   
                       
                        // 发件人身份验证,否则163   发不了
                        client.Credentials   =      new    System.Net.NetworkCredential(strFrom,   Password);

                        // 发送
                        client.Send(message);
                }
        }