Gmail的：如何以编程方式发送电子邮件 [英] Gmail: How to send an email programmatically

问题描述

可能的精确副本：发送电子邮件在C＃.NET通过Gmail

您好，

我想使用Gmail发送电子邮件：

我想，我发现这个网站和其他网站，但我总是得到同样的错误不同的例子：
无法连接到远程服务器 - > System.net.Sockets.SocketException：无连接可以作出，因为目标积极拒绝，209.85.147.109:587

 公共静态无效Attempt1（）
    {
        VAR的客户=新SmtpClient（smtp.gmail.com，587）
        {
            证书=新的NetworkCredential（[e-mail]，MYPASSWORD），
            EnableSsl =真
        };
        client.Send（[e-mail]，[e-mail]，测试，testbody）;
    }
 

任何想法？

更新

更多细节。

也许我应该说我做了什么其他的尝试，给了我同样的错误： （注意：当我没有指定端口就tryed端口25）

 公共静态无效ATTEMPT2（）
    {
        VAR fromAddress =新MailAddress（[e-mail]，从名称）;
        VAR的toAddress =新MailAddress（[e-mail]，来命名）;
        常量字符串fromPassword =通行证;
        常量字符串主题=主题;
        常量字符串身体=身体;
        VAR SMTP =新SmtpClient
        {
            主机=smtp.gmail.com，
            端口= 587，
            EnableSsl = TRUE，
            DeliveryMethod = SmtpDeliveryMethod.Network，
            UseDefaultCredentials =假，
            证书=新的NetworkCredential（fromAddress.Address，fromPassword）
        };
        使用（VAR消息=新MailMessage（fromAddress，的toAddress）
        {
            主题=主题，
            身体=人体
        }
            ）{smtp.Send（消息）; }
    }


    公共静态无效Attempt3（）
    {
        MailMessage电子邮件=新MailMessage（）;
        mail.To.Add（[e-mail]）;
        mail.From =新MailAddress（[e-mail]）;
        mail.Subject =通过电子邮件使用Gmail;

        字符串身体=你好，此邮件是测试发送邮件+
                      使用Gmail在ASP.NET中;
        mail.Body =身体;

        mail.IsBodyHtml = TRUE;
        SmtpClient SMTP =新SmtpClient（）;
        smtp.Host =smtp.gmail.com;
        smtp.Credentials =新System.Net.NetworkCredential
             （[e-mail]，通行证）;
        smtp.EnableSsl = TRUE;
        smtp.Send（邮件）;
    }
 

解决方案

我用下面的code：

  SmtpClient SC =新SmtpClient（smtp.gmail.com）;
的NetworkCredential NC =新的NetworkCredential（用户名，密码）; //用户名不包括@ gmail.com
sc.UseDefaultCredentials = FALSE;
sc.Credentials = NC;
sc.EnableSsl = TRUE;
sc.Port = 587;
尝试 {
    sc.Send（毫米）;
}赶上（例外前）{
    EventLog.WriteEntry（发送错误，EventLogEntryType.Error）;
}
 

Possible Exact Duplicate: Sending Email in C#.NET Through Gmail

Hi,

I'm trying to send an email using gmail:

I tried various examples that I found on this site and other sites but I always get the same error:
Unable to connect to the remote server -- > System.net.Sockets.SocketException: No connection could be made because the target actively refused it 209.85.147.109:587

    public static void Attempt1()
    {
        var client = new SmtpClient("smtp.gmail.com", 587)
        {
            Credentials = new NetworkCredential("[e-mail]", "MyPassWord"),
            EnableSsl = true
        };
        client.Send("[e-mail]", "[e-mail]", "test", "testbody"); 
    }

Any ideas?

UPDATE

More details.

Maybe I should say what other attempts I made that gave me the same error: (Note when i didn't specify a port it tryed port 25)

    public static void Attempt2()
    {
        var fromAddress = new MailAddress("[e-mail]", "From Name");
        var toAddress = new MailAddress("[e-mail]", "To Name");
        const string fromPassword = "pass";
        const string subject = "Subject";
        const string body = "Body";
        var smtp = new SmtpClient
        {
            Host = "smtp.gmail.com",
            Port = 587,
            EnableSsl = true,
            DeliveryMethod = SmtpDeliveryMethod.Network,
            UseDefaultCredentials = false,
            Credentials = new NetworkCredential(fromAddress.Address, fromPassword)
        };
        using (var message = new MailMessage(fromAddress, toAddress)
        {
            Subject = subject,
            Body = body
        }
            ) { smtp.Send(message); }
    }


    public static void Attempt3()
    {
        MailMessage mail = new MailMessage();
        mail.To.Add("[e-mail]");
        mail.From = new MailAddress("[e-mail]");
        mail.Subject = "Email using Gmail";

        string Body = "Hi, this mail is to test sending mail" +
                      "using Gmail in ASP.NET";
        mail.Body = Body;

        mail.IsBodyHtml = true;
        SmtpClient smtp = new SmtpClient();
        smtp.Host = "smtp.gmail.com";
        smtp.Credentials = new System.Net.NetworkCredential
             ("[e-mail]", "pass");
        smtp.EnableSsl = true;
        smtp.Send(mail);
    }

解决方案

I'm using the following code:

SmtpClient sc = new SmtpClient("smtp.gmail.com");
NetworkCredential nc = new NetworkCredential("username", "password");//username doesn't include @gmail.com
sc.UseDefaultCredentials = false;
sc.Credentials = nc;
sc.EnableSsl = true;
sc.Port = 587;
try {
    sc.Send(mm);
} catch (Exception ex) {
    EventLog.WriteEntry("Error Sending", EventLogEntryType.Error);
}

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