using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Mail;
using System.Configuration;

        /// <summary>
        /// 发送邮件
        /// </summary>
        /// <param name="To">接收人信箱</param>
        /// <param name="toname">接收人姓名</param>
        /// <param name="body">内容</param>
        /// <returns></returns>
        public static bool send( string To, string toname,  string body)
        {
            ////设置发件人信箱,及显示名字
            MailAddress from = new MailAddress(ConfigurationManager.AppSettings["SendAddress"].ToString(), ConfigurationManager.AppSettings["FromName"].ToString());
            //设置收件人信箱,及显示名字
            MailAddress to = new MailAddress(To, toname);
            //创建一个MailMessage对象
            MailMessage oMail = new MailMessage(from, to);

            oMail.Subject = ConfigurationManager.AppSettings["Subject"].ToString(); //邮件标题
            oMail.Body = body; //邮件内容

            oMail.IsBodyHtml = true; //指定邮件格式,支持HTML格式
            oMail.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312");//邮件采用的编码
            oMail.Priority = MailPriority.High;//设置邮件的优先级为高

            //发送邮件服务器
            SmtpClient client = new SmtpClient();
            client.Host = ConfigurationManager.AppSettings["HostAddress"].ToString(); //指定邮件服务器
            client.Credentials = new NetworkCredential(ConfigurationManager.AppSettings["SendAddress"].ToString(), ConfigurationManager.AppSettings["SendPwd"]);//指定服务器邮件,及密码

            //发送
            try
            {
                client.Send(oMail); //发送邮件
                return true;
            }
            catch
            {
                return false;
            }

            //释放资源
            oMail.Dispose();
        }