3

私は、tcp 接続を開き、tcp 経由でリモートの gmail サーバーにメッセージを送信できる次のコードを作成します。

TextWriter writerlog = new StreamWriter(AppDomain.CurrentDomain.BaseDirectory + "service.txt");
            writerlog.WriteLine("Initializing service");
            TcpClient tcpclient = new TcpClient(); // create an instance of TcpClient
            try
            {
                writerlog.WriteLine("Starting Tcp Client");

                writerlog.WriteLine("Connecting Tcp Client");

                tcpclient.Connect("pop.gmail.com", 995); // HOST NAME POP SERVER and gmail uses port number 995 for POP 

                writerlog.WriteLine("Getting stream from client");

                System.Net.Security.SslStream sslstream = new SslStream(tcpclient.GetStream()); // This is Secure Stream // opened the connection between client and POP Server

                sslstream.AuthenticateAsClient("pop.gmail.com"); // authenticate as client 

                writerlog.WriteLine("Creating stream writer and stream reader");

                StreamWriter sw = new StreamWriter(sslstream); // Asssigned the writer to stream

                StreamReader reader = new StreamReader(sslstream); // Assigned reader to stream

                writerlog.WriteLine("Init Authentication");

                writerlog.WriteLine("Sending user");

                SendCommand("USER xxxxxxxx@gmail.com", sw, reader); // refer POP rfc command, there very few around 6-9 command 

                writerlog.WriteLine("Sending password");

                SendCommand("PASS yyyyyyyyy", sw, reader); // Sending password 

                writerlog.WriteLine("Retrieving last email");

                writerlog.WriteLine("Email contents:" + SendCommand("RETR 1", sw, reader)); // this will retrive your first email

                writerlog.WriteLine("Closing connection");

                SendCommand("Quit", sw, reader);// close the connection
            }
            catch (Exception ex)
            {
                writerlog.WriteLine("Exception: " + ex.Message);
                writerlog.WriteLine("StackTrace: " + ex.StackTrace);
                writerlog.WriteLine("InnerExceptiion: " + ex.StackTrace);
            }
            finally 
            {
                writerlog.WriteLine("Ending service");
                tcpclient.Close();
                writerlog.Close();
            }

TCP メッセージを送信する方法:

protected string SendCommand(string cmdtext, StreamWriter writer, StreamReader reader)
        {
            writer.WriteLine(cmdtext);
            writer.Flush();
            return reader.ReadLine();
        }

次の Pop3 コマンドのリストがあり、この行を使用して電子メールの内容を取得するために RETR を使用しました。

writerlog.WriteLine("メール内容:" + SendCommand("RETR 1", sw, reader));

しかし、私のログファイルでは次のようになっています:

メール内容：+OK送信PASS

    USER - Takes one argument i.e., the email address of the user trying to connect to his/her mailbox. Example usage: 
        USER youremail@xyz.com
    PASS - Takes one argument i.e., the password of the user. Example usage: 
        PASS yourpassword
    STAT - Returns the number of emails in the mailbox and the number of bytes all the emails are taking on the server. Example usage: 
        STAT
    TOP - Takes two arguments i.e., the sort number of the email on the server and the number of lines of text to retrieve from the body of the email. Example usage: 
        TOP 1 10
    RETR - Takes one argument i.e., the sort number of the email on the server and returns all the headers and lines from the body of the email. Example usage: 
        RETR 1
    DELE - Takes one argument i.e., the sort number of the email on the server and deletes it. Example usage: 
        DELE 1
    RSET - Resets any DELE commands given above. The emails marked to be deleted by DELE command are unmarked. Example usage: 
        RSET
    QUIT - Closes the user session with the server. Example usage: 
        QUIT

メールの内容を取得するために不足しているものを教えていただけますか?

前もって感謝します。

敬具。

ホセ。

4

2 に答える 2

2

gmail を読むために Imap を使うことができます:

ImapClient ic = new ImapClient("imap.gmail.com", "xxxxx@gmail.com", "xxxxxx",
            ImapClient.AuthMethods.Login, 993, true);           
        ic.SelectMailbox("INBOX");          
        int n = ic.GetMessageCount();
        textBox1.Text = n.ToString();
        MailMessage mail = ic.GetMessage(n-1);
        ic.Dispose();
        string sub = mail.Subject;
        string msgbody = mail.Raw;

または次の pop3 メソッド:

 string result = "";
        string str = string.Empty;
        string strTemp = string.Empty;

        try
        {                
            TcpClient tcpclient = new TcpClient();
            tcpclient.Connect("pop3.gmail.com", 995);
            System.Net.Security.SslStream sslstream = new SslStream(tcpclient.GetStream());
            sslstream.AuthenticateAsClient("pop3.gmail.com");
            System.IO.StreamWriter sw = new StreamWriter(sslstream);
            System.IO.StreamReader reader = new StreamReader(sslstream);
            strTemp = reader.ReadLine();
            sw.WriteLine("USER" + " " + username);
            sw.Flush();
            strTemp = reader.ReadLine();
            sw.WriteLine("PASS" + " " + password);
            sw.Flush();
            strTemp = reader.ReadLine();                
                string[] numbers = Regex.Split(strTemp, @"\D+");
                int a = 0;
                foreach (string value in numbers)
                {
                    if (!string.IsNullOrEmpty(value))
                    {

                        int i = int.Parse(value);
                        numbers[a] = i.ToString();
                        a++;
                    }
                }                                    
            sw.WriteLine("RETR "+numbers[0]);
            sw.Flush();
            strTemp = reader.ReadLine();
            textBox4.Text = strTemp;
            while ((strTemp = reader.ReadLine()) != null)
            {
                if (strTemp == ".")
                {
                    break;
                }
                if (strTemp.IndexOf("-ERR") != -1)
                {
                    break;
                }
                str += strTemp;
            }
            sw.WriteLine("Quit ");
            sw.Flush();                                
            this.sourceHTML = str;
         }
        catch () {}
于 2013-09-19T05:43:32.363 に答える
1

この投稿 ( How to read the body in the mail retrieve from gmail by using pop3 in c#? ) は、やりたいことを行うためのより良い方法を説明しています。私はTCPの方法を使用していました..しかし、Popクライアントを使用すると、はるかに簡単になります!

よろしくお願いします、

ヤン。

于 2013-02-01T19:56:09.713 に答える