(MFC) POP3 using HTTP Proxy

Demonstrates how to communicate with a POP3 server through an HTTP proxy.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkMailMan.h>
#include <CkEmailBundle.h>
#include <CkEmail.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // The mailman object is used for receiving (POP3) 
    // and sending (SMTP) email.
    CkMailMan mailman;

    // To connect through an HTTP proxy, set the HttpProxyHostname
    // and HttpProxyPort properties to the hostname (or IP address)
    // and port of the HTTP proxy.  Typical port numbers used by
    // HTTP proxy servers are 3128 and 8080.
    mailman.put_HttpProxyHostname("www.my-http-proxy.com");
    mailman.put_HttpProxyPort(3128);

    // Important:  Your HTTP proxy server must allow non-HTTP
    // traffic to pass.  Otherwise this does not work.

    // Set the POP3 server's hostname
    mailman.put_MailHost("pop.someMailServer.com");

    // Set the POP3 login/password.
    mailman.put_PopUsername("myLogin");
    mailman.put_PopPassword("myPassword");

    // Copy the all email from the user's POP3 mailbox 
    // into a bundle object.  The email remains on the server.
    // 
    // NOTE: All methods that communicate with a POP3 server
    // will automatically connect and authenticate (i.e. login)
    // if not already connected.  The connection will remain
    // open after the method call returns so that subsequent
    // calls do not need to re-establish the connection.
    // In this case, the connection is established via the HTTP
    // proxy.
    CkEmailBundle *bundle = mailman.CopyMail();
    if (mailman.get_LastMethodSuccess() == false) {
        strOut.append(mailman.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    int i = 0;
    CkEmail *email = 0;
    while (i < bundle->get_MessageCount()) {
        email = bundle->GetEmail(i);
        strOut.append("From: ");
        strOut.append(email->ck_from());
        strOut.append("\r\n");
        strOut.append("Subject: ");
        strOut.append(email->subject());
        strOut.append("\r\n");
        delete email;
        i = i + 1;
    }

    delete bundle;

    bool success = mailman.Pop3EndSession();


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }