请在此确定错误 [英] Please identify error in this

问题描述

当我运行此代码发送邮件时，我收到如下错误：

 SMTP服务器需要安全连接或客户端未经过身份验证。服务器响应为： 5 。 5 。 1 需要验证  
 
 
 
 
 
使用System.Net.Mail; 
使用System.Text; 
 
 public partial class _Default：System.Web.UI.Page 
 {
 / * Mail将发送的用户信用* / 
 private const String FROM = 我的电子邮件 ; 
 private const String userName = FROM; 
 private const String PassWord =密码 8  chars  ; 
 private String MailTitle =  ; 
 private String MailBody =  ; 
 protected void Page_Load（object sender，EventArgs e）
 {
 
} 
 protected void Button1_Click（object sender，EventArgs e）
 {
尝试{
 SmtpClient client = new SmtpClient（）; 
 client.Port = 587; 
 client.Host = smtp.gmail.com  ; 
 client.EnableSsl = true; 
 client.Timeout = 1000000; 
 client.DeliveryMethod = SmtpDeliveryMethod.Network; 
 client.UseDefaultCredentials = true; 
 client.Credentials = new System.Net.NetworkCredential（userName，PassWord）; 
 
 MailTitle =测试邮件通知！ ; 
 MailBody =此 简单邮件测试程序！ ; 
 MailMessage mm = new MailMessage（FROM，TextBox3.Text，MailTitle，< h1>< u>   + MailBody + < /   u  >  < /   h1  >   ）; 
 mm.IsBodyHtml = true; / * TO sebd HTML格式化数据！* / 
 mm.BodyEncoding = UTF8Encoding.UTF8; 
 mm.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure; 
 
 client.Send（mm）; 
 Response.Write（邮件已成功发送 ）; 
} 
 catch（Exception ex）{
 Response.Write（ex.Message）; 
 
 
}  

我的尝试：



我试过上面的代码，但我说

 SMTP服务器需要安全连接或客户端未经过身份验证。服务器响应是： 5 。 5 。 1 需要验证

解决方案

请参考 c＃ - 如何根据新的安全策略在.Net中发送电子邮件？ [ ^ ]

When I run this code to send Mail, I am getting error like this:
"

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required"





using System.Net.Mail;
using System.Text;

public partial class _Default : System.Web.UI.Page
{
    /*User Crediatials by which Mail would sent */
    private const String FROM = "my email";
    private const String userName = FROM;
    private const String PassWord = "password of 8 chars";
    private String MailTitle = "";
    private String MailBody = "";
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        try {
            SmtpClient client = new SmtpClient();
            client.Port = 587;
            client.Host = "smtp.gmail.com";
            client.EnableSsl= true;
            client.Timeout = 1000000;
            client.DeliveryMethod = SmtpDeliveryMethod.Network;
            client.UseDefaultCredentials = true;
            client.Credentials = new System.Net.NetworkCredential(userName,PassWord);
           
            MailTitle = "Test Mail Notification !";
            MailBody = "This is a Simple Mail Tester !";
            MailMessage mm = new MailMessage(FROM,TextBox3.Text,MailTitle,"<h1><u>"+ MailBody+"</u></h1>");
            mm.IsBodyHtml = true;/*TO sebd HTML Formatted Data !*/
            mm.BodyEncoding = UTF8Encoding.UTF8;
            mm.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;

            client.Send(mm);
            Response.Write("Mail Sent Successfully");
        }
        catch (Exception ex) {
            Response.Write(ex.Message);

        
        }

What I have tried:

I tried above code but i says "

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required

"

解决方案

Please refer c# - How to send an email in .Net according to new security policies?[^]

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