(Unicode C++) How to Copy IMAP Mail to another IMAP Server

Demonstrates how to copy the entire contents of an IMAP mailbox to another IMAP server.

Note: This example requires Chilkat v11.0.0 or greater.

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#include <CkImapW.h>
#include <CkStringBuilderW.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.

    CkImapW imapSrc;

    // Connect to our source IMAP server.
    success = imapSrc.Connect(L"imap.example.com");
    if (success == false) {
        wprintf(L"%s\n",imapSrc.lastErrorText());
        return;
    }

    // Login to the source IMAP server
    success = imapSrc.Login(L"admin@chilkatsoft.com",L"myPassword");
    if (success == false) {
        wprintf(L"%s\n",imapSrc.lastErrorText());
        return;
    }

    CkImapW imapDest;

    // Connect to our destination IMAP server.
    success = imapDest.Connect(L"mail.example-code.com");
    if (success == false) {
        wprintf(L"%s\n",imapDest.lastErrorText());
        return;
    }

    // Login to the destination IMAP server
    success = imapDest.Login(L"myLogin",L"myPassword");
    if (success == false) {
        wprintf(L"%s\n",imapDest.lastErrorText());
        return;
    }

    // Select an IMAP mailbox on the source IMAP server
    success = imapSrc.SelectMailbox(L"Inbox");
    if (success == false) {
        wprintf(L"%s\n",imapSrc.lastErrorText());
        return;
    }

    // After selecting a mailbox, the NumMessages property will
    // be updated to reflect the total number of emails in the mailbox:
    wprintf(L"%d\n",imapSrc.get_NumMessages());

    // The emails in the mailbox will always have sequence numbers
    // ranging from 1 to NumMessages.

    // This example will copy the first 10 messages using sequence numbers
    CkStringBuilderW sbMime;
    int seqNum;
    for (seqNum = 1; seqNum <= 10; seqNum++) {
        sbMime.Clear();
        success = imapSrc.FetchSingleAsMimeSb(seqNum,false,sbMime);
        if (success == false) {
            wprintf(L"%s\n",imapSrc.lastErrorText());
            return;
        }

        success = imapDest.AppendMimeWithFlagsSb(L"Inbox",sbMime,false,false,false,false);
        if (success == false) {
            wprintf(L"%s\n",imapDest.lastErrorText());
            return;
        }

    }

    // Disconnect from the IMAP servers.
    success = imapSrc.Disconnect();
    success = imapDest.Disconnect();
    }