C# Smtp方式发送邮件

  //简单邮件传输协议类             System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient();             client.Host = "smtp.163.com";//邮件服务器             client.Port = 25;//smtp主机上的端口号,默认是25.             client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;//邮件发送方式:通过网络发送到SMTP服务器             client.Credentials = new System.Net.NetworkCredential("armyfai", "******");//凭证,发件人登录邮箱的用户名和密码

            //电子邮件信息类             System.Net.Mail.MailAddress fromAddress = new System.Net.Mail.MailAddress("*******@163.com", "***********");//发件人Email,在邮箱是这样显示的,[发件人:小明<[email protected]>;]             System.Net.Mail.MailAddress toAddress = new System.Net.Mail.MailAddress("********@qq.com", "*******");//收件人Email,在邮箱是这样显示的, [收件人:小红<[email protected]>;]             System.Net.Mail.MailMessage mailMessage = new System.Net.Mail.MailMessage(fromAddress, toAddress);//创建一个电子邮件类             mailMessage.Subject = "邮件的主题";             //string filePath = Server.MapPath("/index.html");//邮件的内容可以是一个html文本.             //System.IO.StreamReader read = new System.IO.StreamReader(filePath, System.Text.Encoding.GetEncoding("GB2312"));             //string mailBody = read.ReadToEnd();

            string mailBody = "明天去吃饭！！";            // read.Close();             mailMessage.Body = mailBody;//可为html格式文本             //mailMessage.Body = "邮件的内容";//可为html格式文本             mailMessage.SubjectEncoding = System.Text.Encoding.UTF8;//邮件主题编码             mailMessage.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312");//邮件内容编码             mailMessage.IsBodyHtml = true;//邮件内容是否为html格式             mailMessage.Priority = System.Net.Mail.MailPriority.High;//邮件的优先级,有三个值:高(在邮件主题前有一个红色感叹号,表示紧急),低(在邮件主题前有一个蓝色向下箭头,表示缓慢),正常(无显示).             try             {                 client.Send(mailMessage);//发送邮件                 //client.SendAsync(mailMessage, "ojb");异步方法发送邮件,不会阻塞线程.             }             catch (Exception)             {             }