public class SendEmail
    {
        private string _serverUrl;
        private string _userName;
        private string _userPwd;
        private string _userUrl;
        private string _receiveUrl;
        private string _title;
        private string _body;

        public string ServerUrl
        {
            get { return _serverUrl; }
            set { _serverUrl = value; }
        }

        public string UserName
        {
            get { return _userName; }
            set { _userName = value; }
        }

        public string UserPwd
        {
            get { return _userPwd; }
            set { _userPwd = value; }
        }

        public string UserUrl
        {
            get { return _userUrl; }
            set { _userUrl = value; }
        }

        public string ReceiveUrl
        {
            get { return _receiveUrl; }
            set { _receiveUrl = value; }
        }

        public string Title
        {
            get { return _title; }
            set { _title = value; }
        }

        public string Body
        {
            get { return _body; }
            set { _body = value; }
        }

        public void SendMail(SendEmail email)
        {
            //发送邮件,直接发送带有用户名，密码的邮件，因为密码没有加密。
            System.Net.Mail.SmtpClient client = new SmtpClient(email.ServerUrl);
            client.UseDefaultCredentials = false;
            //下面的用户名密码填写自己在163的用户名密码，也可以修改上面的SMTP服务器
            client.Credentials = new System.Net.NetworkCredential(email.UserName,

email.UserPwd);
            client.DeliveryMethod = SmtpDeliveryMethod.Network;
            //创建MailMessage对象，参数分别为 发件人地址，收件人地址 ，信件标题，信件正文
            System.Net.Mail.MailMessage message = new MailMessage(email.UserUrl,

email.ReceiveUrl, email.Title, email.Body);
            message.BodyEncoding = System.Text.Encoding.Default;    //编码
            message.IsBodyHtml = true; //是否是HTML代码
            try
            {
                client.Send(message);   //发送
            }
            catch
            {
            }
        }
    }