如何修复C＃中发送电子邮件问题？ [英] How Do I Fix Sending Email Problem In C# ?

问题描述

大家好，

i尝试简单开发网站，我需要在其中添加发送邮件



i尝试多种格式的代码，但我仍然遇到同样的问题

我面临的问题是：

在Chrome浏览器中：根据验证程序，远程证书无效。

在Firefox& Internet Explorer ：发送邮件失败。



这是代码，我在youtube上看到它和写它的人一起工作，但我不知道是什么问题与我的项目..



代码：

 MailMessage msg =  new  MailMessage（）; 
 MailAddress to =  new  MailAddress（Label24.Text.ToString（），  Trainig管理系统）; 
 MailAddress 来自 =  new  MailAddress（Label15.Text.ToString（））; 
 msg.To.Add（to）; 
 msg.From = 来自; 
 msg.Subject = Label20.Text.ToString（）; 
 msg.Body = Label23.Text.ToString（）; 
 msg.IsBodyHtml =  true ; 
 msg.SubjectEncoding = System.Text.Encoding.UTF8; 
 
  //  读取邮件信息smtp简单传输协议 
 SmtpClient client =  new  SmtpClient（）; 
 client.Host =   smtp.gmail.com;  //   google smtp setting  
 client.Port =  587 ; 
 
  //  获取'from'地址详细信息（用户名+密码） 
 System.Net.NetworkCredential myaccount =  new  NetworkCredential（Label15.Text.ToString（），TextBox1.Text.ToString（））; 
 client.Credentials = myaccount; 
 client.EnableSsl =  true ;  //   encription，使其安全（发件人信息） 
 client.UseDefaultCredentials = 假; 
 
 
 尝试 
 {
 client.Send（msg）; 
 Server.Transfer（  end_message.aspx，真）; 
} 
  catch （例外情况）
 {
 Label19.Text = ex.Message; 
} 

解决方案

根据错误消息远程证书根据验证程序无效。在上面的一条评论中，你可能想要执行这些诊断步骤 [ ^ ]。还要确保系统的日期和时间正确无误。



希望这会有所帮助。

请删除Google身份验证两步验证，然后重试..

如果仍然坚持尝试这些，



http://i.stack.imgur.com/SSA0j.png



http://stackoverflow.com/questions/20906077/gmail-error-所述-SMTP-服务器需要-A-安全连接或 - 所述客户端 - 是 - 不

Hi All,
i trying to simple develop website and i need to add sending email in it

i try many format of codes, but still i get same problem
the problem that I face says:
in Chrome browser : The remote certificate is invalid according to the validation procedure.
in Firefox & Internet Explorer : Failure sending mail.

This is the code ,, and i saw that in youtube and it is working with the person who write it ,, but I don't know what is the problem with my project ..

The Code :

MailMessage msg = new MailMessage();
            MailAddress to = new MailAddress(Label24.Text.ToString(), " Trainig Management System");
            MailAddress from = new MailAddress(Label15.Text.ToString());
            msg.To.Add(to);
            msg.From = from;
            msg.Subject = Label20.Text.ToString();
            msg.Body = Label23.Text.ToString();
            msg.IsBodyHtml = true;
            msg.SubjectEncoding = System.Text.Encoding.UTF8;

            // to read mail information smtp simple transfer protocol
            SmtpClient client = new SmtpClient();
            client.Host = "smtp.gmail.com";   // google smtp setting
            client.Port = 587;

            // to get the 'from' address details ( user name + password) 
            System.Net.NetworkCredential myaccount = new NetworkCredential(Label15.Text.ToString(), TextBox1.Text.ToString());
            client.Credentials = myaccount;
            client.EnableSsl = true;  // encription, make it secure (the sender infromation) 
            client.UseDefaultCredentials = false;


            try
            {
                client.Send(msg);
                Server.Transfer("end_message.aspx", true);
            }
            catch (Exception ex)
            {
                Label19.Text = ex.Message;
            }

解决方案

As per the error message "The remote certificate is invalid according to the validation procedure." in one of your comments above, you may want to perform these diagnostic steps[^]. Also ensure that the system's date and time are correct.

Hope this helps.

Please remove Google authentication 2-step verification and try again ..

if still persist try these,

http://i.stack.imgur.com/SSA0j.png

http://stackoverflow.com/questions/20906077/gmail-error-the-smtp-server-requires-a-secure-connection-or-the-client-was-not

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