阅读只有TcpClient的POP3服务器和StreamWriter / StreamReader的

问题描述

我尝试通过POP3协议从我的live.com帐户中读取邮件。

I'm trying to read mails from my live.com account, via the POP3 protocol.

我发现服务器是pop3.live.com和端口（如果是995）。

I've found the the server is pop3.live.com and the port if 995.

我不打算使用预制库，我使用NetworkStream和StreamReader / StreamWriter作业。我需要弄清楚这一点。因此，此处提供的任何答案：不是有用的。

I'm not planning on using a pre-made library, I'm using NetworkStream and StreamReader/StreamWriter for the job. I need to figure this out. So, any of the answers given here: http://stackoverflow.com/questions/44383/reading-email-using-pop3-in-c are not usefull.

它是一个更大的程序的一部分，但我做了一个小测试如果它工作。无论如何，我没有得到任何东西。这是我使用的代码，我认为应该是正确的。

It's part of a larger program, but I made a small test to see if it works. Eitherway, i'm not getting anything. Here's the code I'm using, which I think should be correct.

编辑：这段代码是旧的，请参考第二个块问题解决。

this code is old, please refer to the second block problem solved.

public Program() {
    string temp = "";
    using(TcpClient tc = new TcpClient(new IPEndPoint(IPAddress.Parse("127.0.0.1"),8000))) {
        tc.Connect("pop3.live.com",995);
        using(NetworkStream nws = tc.GetStream()) {
            using(StreamReader sr = new StreamReader(nws)) {
                using(StreamWriter sw = new StreamWriter(nws)) {
                    sw.WriteLine("USER " + user);
                    sw.Flush();
                    sw.WriteLine("PASS " + pass);
                    sw.Flush();
                    sw.WriteLine("LIST");
                    sw.Flush();
                    while(temp != ".") {
                        temp += sr.ReadLine();
                    }
                }
            }
        }
    }
    Console.WriteLine(temp);
}

Visual Studio调试器不断地落在 tc.Connect pop3.live.com，995）; 其中抛出一个套接字操作尝试到一个不可达网络65.55.172.253:995错误。

Visual Studio debugger constantly falls over tc.Connect("pop3.live.com",995); Which throws an "A socket operation was attempted to an unreachable network 65.55.172.253:995" error.

所以，我从我的机器上的端口8000发送到端口995，hotmail pop3端口。
我没有什么，我没有想法。

So, I'm sending from port 8000 on my machine to port 995, the hotmail pop3 port.And I'm getting nothing, and I'm out of ideas.

第二块：显然我没有写退出命令。

Second block: Problem was apparently that I didn't write the quit command.

代码：

public Program() {
    string str = string.Empty;
    string strTemp = string.Empty;
    using(TcpClient tc = new TcpClient()) {
        tc.Connect("pop3.live.com",995);
        using(SslStream sl = new SslStream(tc.GetStream())) {
            sl.AuthenticateAsClient("pop3.live.com");
            using(StreamReader sr = new StreamReader(sl)) {
                using(StreamWriter sw = new StreamWriter(sl)) {
                    sw.WriteLine("USER " + user);
                    sw.Flush();
                    sw.WriteLine("PASS " + pass);
                    sw.Flush();
                    sw.WriteLine("LIST");
                    sw.Flush();
                    sw.WriteLine("QUIT ");
                    sw.Flush();

                    while((strTemp = sr.ReadLine()) != null) {
                        if(strTemp == "." || strTemp.IndexOf("-ERR") != -1) {
                            break;
                        }
                        str += strTemp;
                    }
                }
            }
        }
    }
    Console.WriteLine(str);
}

推荐答案

网络流量使用Wireshark？是否正在发送任何邮件？

What happens if you view the Network Traffic using Wireshark? Is it sending anything at all?

编辑：我无法通过telnet连接到该端口的pop3.live.com。您是否通过pop3电子邮件客户端成功连接？

I can't connect via telnet to pop3.live.com at that port either. Have you managed to successfully connect via a pop3 email client ever?

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