邮件

MailMessage msg = new MailMessage();
        msg.Body = this.Txt_content.Text;
        msg.From = new MailAddress("hjingtao327@163.com");
        msg.Subject  = this.Txt_theme.Text;
        msg.IsBodyHtml = true;
        msg.To.Add(this .Txt_shoujianren .Text );

        string filename = this.FileUpload1.FileName;
        this.FileUpload1.SaveAs(Server .MapPath ("~/")+filename );
        Attachment att = new Attachment(Server.MapPath("~/") + filename);
        msg.Attachments.Add(att);
       
        SmtpClient sc = new SmtpClient();
        sc.Host = "smtp.163.com";
        //sc.Port = 25;
        NetworkCredential nc = new NetworkCredential();
        nc.UserName = "hjingtao327";
        nc.Password = "3271992";
        sc.Credentials = nc;
        sc.Send(msg );