如何通过 IIS7 发送电子邮件? [英] How to send email through IIS7?

问题描述

我正在尝试在我的 Windows 7 机器上使用 IIS7 设置 SMTP 服务器.我已将其设置为将电子邮件发送到 localhost，端口 25，没有身份验证.但是当我尝试从我的 C# 程序以编程方式连接时，我收到一个错误:

I'm trying to set up a SMTP server on my Windows 7 machine in IIS7. I have set it to "Deliver email to localhost, port 25, no authentication. But when I try to connect programmatically from my C# program, I get an error:

发送邮件失败"，内部异常无法建立连接，因为目标机器主动拒绝了它127.0.0.1:25

Failure sending mail", inner exception "No connection could be made because the target machine actively refused it 127.0.0.1:25

public static void SendEmail(MailMessage m) {
  var smtp = new SmtpClient {
    Host = "localhost",
    Port = 25,
    UseDefaultCredentials = true,
  };
  smtp.Send(m);
}

为什么?我还需要打开什么其他秘密开关?

Why? What other secret switch do I have to flip?

推荐答案

我发现最好的方法是使用 SMTP4Dev，它会侦听电子邮件，并向您显示已发送"的内容，但实际上并未发送任何内容.非常适合测试！

Best method I found was to use SMTP4Dev, which listens for emails, and shows you what was "sent", but doesn't actually send anything. Great for testing!

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