Sample code for 30+ languages & platforms
C++

Retrieve UIDL's from POP3 Server

Retrieve a list of UIDLs from a POP3 server. UIDLs are unique identifiers, 1 to 70 characters long, composed of characters ranging from 0x21 to 0x7E. These identifiers uniquely distinguish messages within a mailbox and remain consistent across sessions.

Chilkat C++ Downloads

C++
#include <CkMailMan.h>
#include <CkStringTable.h>
#include <CkEmail.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkMailMan mailman;

    mailman.put_MailHost("pop.example.com");

    mailman.put_PopUsername("myLogin");
    mailman.put_PopPassword("myPassword");

    mailman.put_MailPort(995);
    mailman.put_PopSsl(true);

    CkStringTable stUidls;
    success = mailman.FetchUidls(stUidls);
    if (success == false) {
        std::cout << mailman.lastErrorText() << "\r\n";
        return;
    }

    // Download each email by UIDL.
    CkEmail email;

    int count = stUidls.get_Count();
    int i = 0;
    while (i < count) {
        // Download the full email.
        const char *uidl = stUidls.stringAt(i);
        success = mailman.FetchByUidl(uidl,false,0,email);
        if (success == false) {
            std::cout << mailman.lastErrorText() << "\r\n";
            return;
        }

        std::cout << i << "\r\n";
        std::cout << "UIDL: " << uidl << "\r\n";
        std::cout << "From: " << email.ck_from() << "\r\n";
        std::cout << "Subject: " << email.subject() << "\r\n";

        i = i + 1;
    }

    mailman.Pop3EndSession();
    }