How to Copy IMAP Mail to another IMAP Server

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

Downloads:

MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

// Needs #include <CkImap.h>
// Needs #include <CkStringArray.h>

    CkString strOut;

    CkImap imapSrc;

    bool success;

    //  Anything unlocks the component and begins a fully-functional 30-day trial.
    success = imapSrc.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        strOut.append(imapSrc.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Connect to our source IMAP server.
    success = imapSrc.Connect("mail.chilkatsoft.com");
    if (success != true) {
        strOut.append(imapSrc.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Login to the source IMAP server
    success = imapSrc.Login("admin@chilkatsoft.com","*myPassword5*");
    if (success != true) {
        strOut.append(imapSrc.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    CkImap imapDest;

    //  Connect to our destination IMAP server.
    success = imapDest.Connect("mail.example-code.com");
    if (success != true) {
        strOut.append(imapDest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Login to the destination IMAP server
    success = imapDest.Login("myLogin","*myPassword2*");
    if (success != true) {
        strOut.append(imapDest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Select an IMAP mailbox on the source IMAP server
    success = imapSrc.SelectMailbox("Inbox");
    if (success != true) {
        strOut.append(imapSrc.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  After selecting a mailbox, the NumMessages property will
    //  be updated to reflect the total number of emails in the mailbox:
    strOut.appendInt(imapSrc.get_NumMessages());
    strOut.append("\r\n");

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

    //  This example will copy the first 10 messages.
    //  We'll leave it up to you to write code to copy
    //  the entire sequence range in reasonable size chunks.
    long startSeqNum;
    startSeqNum = 1;
    long msgCount;
    msgCount = 10;

    CkStringArray *sa = 0;
    sa = imapSrc.FetchSequenceAsMime(startSeqNum,msgCount);
    if (sa == 0 ) {
        strOut.append(imapSrc.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    long i;
    for (i = 0; i <= sa->get_Count() - 1; i++) {
        success = imapDest.AppendMime("Inbox",sa->getString(i));
        if (success != true) {
            strOut.append(imapDest.lastErrorText());
            strOut.append("\r\n");
            SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
            return;
        }

    }

    delete sa;

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

    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());