C#发送邮件

System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient();
client.Host = "smtp.live.com";//使用hotmail的SMTP服务器发送邮件
client.Port = 587;
client.EnableSsl = true;//经过ssl加密 
client.UseDefaultCredentials = true;
client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
client.Credentials = new System.Net.NetworkCredential("username", "password");
System.Net.Mail.MailMessage Message = new System.Net.Mail.MailMessage();
Message.From = new System.Net.Mail.MailAddress("d@hotmail.com");
Message.To.Add("d@163.com");//将邮件发送给163
Message.To.Add("914261631@qq.com");//将邮件发送给QQ邮箱
Message.Subject = "MiniOA捐助活动";
Message.Body = "MiniOA捐助活动http://item.taobao.com/item.htm?spm=0.0.0.31.54f500&id=20303184220";

Message.SubjectEncoding = System.Text.Encoding.UTF8;
Message.BodyEncoding = System.Text.Encoding.UTF8;
Message.Priority = System.Net.Mail.MailPriority.High;
Message.IsBodyHtml = true;
client.Send(Message);