//记得引用 using System.Net.Mail;        /// <summary>        /// 发送电子邮件        /// </summary>        /// <param name="smtpserver">SMTP服务器</param>        /// <param name="userName">登录帐号</param>        /// <param name="pwd">登录密码</param>        /// <param name="nickName">发件人昵称</param>        /// <param name="strfrom">发件人</param>        /// <param name="strto">收件人</param>        /// <param name="subj">主题</param>        /// <param name="bodys">内容</param>        public static void sendMail(string smtpserver, string userName, string pwd, string nickName, string strfrom, string strto, string subj, string bodys)        {            SmtpClient _smtpClient = new SmtpClient();            _smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;//指定电子邮件发送方式            _smtpClient.Host = smtpserver;//指定SMTP服务器            _smtpClient.Credentials = new System.Net.NetworkCredential(userName, pwd);//用户名和密码            //MailMessage _mailMessage = new MailMessage(strfrom, strto);            MailAddress _from = new MailAddress(strfrom, nickName);            MailAddress _to = new MailAddress(strto);            MailMessage _mailMessage = new MailMessage(_from, _to);            _mailMessage.Subject = subj;//主题            _mailMessage.Body = bodys;//内容            _mailMessage.BodyEncoding = System.Text.Encoding.Default;//正文编码            _mailMessage.IsBodyHtml = true;//设置为HTML格式            _mailMessage.Priority = MailPriority.Normal;//优先级            _smtpClient.Send(_mailMessage);        }

strin smtpserver = "smtp.163.com";string userName = "bruceZhang80"string pwd ="111111";string nickName = "布鲁斯张";string strfrom="brucezhang80@163.com";string strto="jieshouzhe@163.com";, string subj="关于项目进度问题";string bodys = "您好！<br/>.........";sendMail(smtpserver, userName, pwd,nickName, strfrom, strto, subj, bodys);