无法向Google帐户发送电子邮件 [英] Can't Send an Email to google accounts

问题描述

大家好。我目前在发送电子邮件时遇到麻烦。这是代码：

Hello guys. I''m currently having troubles with sending an email. Here''s the code:

MailMessage mail = new MailMessage();
              SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");

              mail.From = new MailAddress("[e-mail]");
              mail.To.Add(txtemail.Text);
              mail.Subject = "Registration Successful";
              mail.Body = "Your password is " + pw + ". You can now logon to your account.";

              SmtpServer.Port = 25;
              SmtpServer.Credentials = new System.Net.NetworkCredential("[e-mail]", "mypassword");
              SmtpServer.EnableSsl = true;

              SmtpServer.Send(mail);

它可以发送电子邮件给@live和@yahoo，但不能发送到google / gmail。请帮帮我......谢谢大家！



缺少引号添加到修复字符串格式[/ edit]

推荐答案

Richard MacCutchan提到它可能在垃圾邮件中。实际上，一切都转移到那里，所以我的案子现在已经关闭。谢谢Richard MacCutchan！

Richard MacCutchan mentioned that it might be in the spam. Actually, everything are transferred there so my case is now closed. Thanks Richard MacCutchan!

Quote：

Microsoft .NET框架提供两个名称空间，System.Net和System.Net.Sockets，用于应用程序可用于通过Internet发送或接收数据的Internet协议的托管实现。 SMTP协议用于从C＃发送电子邮件。 SMTP代表简单邮件传输协议。 C＃使用System.Net.Mail命名空间发送电子邮件。我们可以实例化SmtpClient类并分配主机和端口。使用SMTP的默认端口是25，但它可能会有不同的邮件服务器。



以下C＃源代码显示如何使用SMTP服务器从Gmail地址发送电子邮件。 Gmail SMTP服务器名称为smtp.gmail.com，使用发送邮件的端口为587，并且还使用NetworkCredential进行基于密码的身份验证。



SmtpClient SmtpServer =新的SmtpClient（ smtp.gmail.com）;

SmtpServer.Port = 587;

SmtpServer.Credentials =

new System.Net.NetworkCredential（ username，password）;

The Microsoft .NET framework provides two namespaces, System.Net and System.Net.Sockets for managed implementation of Internet protocols that applications can use to send or receive data over the Internet . SMTP protocol is using for sending email from C#. SMTP stands for Simple Mail Transfer Protocol . C# using System.Net.Mail namespace for sending email . We can instantiate SmtpClient class and assign the Host and Port . The default port using SMTP is 25 , but it may vary different Mail Servers .

The following C# source code shows how to send an email from a Gmail address using SMTP server. The Gmail SMTP server name is smtp.gmail.com and the port using send mail is 587 and also using NetworkCredential for password based authentication.

SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
SmtpServer.Port = 587;
SmtpServer.Credentials =
new System.Net.NetworkCredential("username", "password");

using System;
using System.Windows.Forms;
using System.Net.Mail;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                MailMessage mail = new MailMessage();
                SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");

                mail.From = new MailAddress("[e-mail]");
                mail.To.Add("to_address");
                mail.Subject = "Test Mail";
                mail.Body = "This is for testing SMTP mail from GMAIL";

                SmtpServer.Port = 587;
                SmtpServer.Credentials = new System.Net.NetworkCredential("username", "password");
                SmtpServer.EnableSsl = true;

                SmtpServer.Send(mail);
                MessageBox.Show("mail Send");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }
    }
}

Quote：

你必须提供必要的信息，比如你的gmail用户名和密码等。

You have to provide the necessary information like your gmail username and password etc.

亲爱的gaga blues



每个服务器的SMTP服务器设置都不一样。

（unforunatly ..）



但是这个信息是公开的。



你应该只是谷歌SMTP设置gmail（或任何其他）



我找到了这个简短的gmail要求列表：

Gmail SMTP服务器地址：smtp.gmail.com

Gmail SMTP用户名：您的完整Gmail地址（例如：[e-mail]）

Gmail SMTP密码：您的Gmail密码

Gmail SMTP端口：465

Gmail SMTP TLS / SSL要求：是的



所以你想把这个代码用于gmail：

Dear gaga blues

SMTP server settings are not the same for every server.
(unforunatly..)

However this info is public.

You should just google SMTP settings gmail (or any other)

I found this brief list of requirements for gmail:
Gmail SMTP server address: smtp.gmail.com
Gmail SMTP user name: Your full Gmail address (e.g. [e-mail])
Gmail SMTP password: Your Gmail password
Gmail SMTP port: 465
Gmail SMTP TLS/SSL required: yes

So you want to use this code for gmail:

SmtpServer.Port = 587;
SmtpServer.EnableSsl = true;

希望这是对你有用。

Bert

Hope this is usefull for you.
Bert

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