asp.net之发送邮件1

  /// <summary>
        ///发邮件给用户 
        /// </summary>
        /// <param name="userEmail">用户的邮件地址</param>
        /// <param name="subject">标题</param>
        /// <param name="body">内容</param>
        [WebMethod(Description = "发邮件给用户")]
        public void SendMail(string userEmail, string subject, string body)
        {
            if (userEmail.Trim() != "")
            {
                try
                {
                    System.Web.Mail.MailMessage message = new System.Web.Mail.MailMessage();
                    message.Subject = subject;
                    message.Body = body;
                    message.BodyFormat = System.Web.Mail.MailFormat.Html;
                    string strTisAdmin = ConfigurationSettings.AppSettings["DomainUser"].ToString();
                    string strTisAdminPassword = ConfigurationSettings.AppSettings["TisAdminPassword"].ToString();
                    message.From = strTisAdmin;
                    message.To = userEmail;
                    message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");
                    message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", strTisAdmin);
                    message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", strTisAdminPassword); 				

                    System.Web.Mail.SmtpMail.SmtpServer = ConfigurationSettings.AppSettings["SendServer"].ToString();
                    System.Web.Mail.SmtpMail.Send(message);
                }
                catch
                {

                }
            }
        }