可行的smtp发邮件代码（qq邮箱）

转自：https://www.cnblogs.com/GoCircle/p/6117038.html
 1         public static void Send ()
 2         {
 3             MailMessage msg = new MailMessage();
 4 
 5             msg.To.Add("收件人地址@qq.com");
 6             msg.CC.Add("抄送人地址@qq.com");
 7 
 8             msg.From = new MailAddress("发件人邮箱@qq.com", "名称");
 9 
10             msg.Subject = "邮件标题";
11             //标题格式为UTF8  
12             msg.SubjectEncoding = Encoding.UTF8;
13 
14             msg.Body = "邮件内容";
15             //内容格式为UTF8 
16             msg.BodyEncoding = Encoding.UTF8;
17 
18             SmtpClient client = new SmtpClient();
19             //SMTP服务器地址 
20             client.Host = "smtp.qq.com";
21             //SMTP端口，QQ邮箱填写587  
22             client.Port = 587;
23             //启用SSL加密  
24             client.EnableSsl = true;
25 
26             client.Credentials = new NetworkCredential("发件人邮箱账号@qq.com", "密码或者授权码");
27             //发送邮件  
28             client.Send(msg);
               msg.Dispose();
　　　　　　　　　client.Dispose();
29         }