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Unicode C++

POP3 using HTTP Proxy

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

Chilkat Unicode C++ Downloads

Unicode C++
#include <CkMailManW.h>
#include <CkEmailBundleW.h>
#include <CkEmailW.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  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.
    CkMailManW 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(L"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(L"pop.example.com");

    //  Set the POP3 login/password.
    mailman.put_PopUsername(L"myLogin");
    mailman.put_PopPassword(L"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.
    CkEmailBundleW bundle;
    bool keepOnServer = true;
    bool headersOnly = false;
    //  Irrelevent because we are not downloading headers-only
    int numBodyLines = 0;
    success = mailman.FetchAll(keepOnServer,headersOnly,numBodyLines,bundle);
    if (success == false) {
        wprintf(L"%s\n",mailman.lastErrorText());
        return;
    }

    CkEmailW email;
    int i = 0;
    while (i < bundle.get_MessageCount()) {
        bundle.EmailAt(i,email);

        wprintf(L"From: %s\n",email.ck_from());
        wprintf(L"Subject: %s\n",email.subject());
        i = i + 1;
    }

    success = mailman.Pop3EndSession();
    }