C++

IMAP STARTTLS (Explicit TLS/SSL)

The StartTls property is set to force the Connect method to automatically convert an connection to TLS/SSL via the STARTTLS IMAP command.

This is also known as "explicit TLS/SSL" as opposed to "implicit TLS/SSL". With implicit TLS/SSL, the IMAP client connects on the well-known IMAP TLS/SSL port 993 and the secure channel is immediately established. With explicit TLS/SSL, the IMAP client connects on the typical non-secure port (143 usually) and the converts the connection via the STARTTLS command.

C++

#include <CkImap.h>
#include <CkMessageSet.h>
#include <CkEmailBundle.h>
#include <CkEmail.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.

    CkImap imap;

    // Indicate that STARTTLS should be used to convert
    // to a secure TLS/SSL connection:
    imap.put_StartTls(true);
    imap.put_Port(143);

    // Connect to an IMAP server and convert the connection
    // to TLS/SSL via STARTTLS.
    success = imap.Connect("imap.example.com");
    if (success == false) {
        std::cout << imap.lastErrorText() << "\r\n";
        return;
    }

    // The remainder of this example is the same as for 
    // non-TLS/SSL...

    // Login
    success = imap.Login("myLogin","myPassword");
    if (success == false) {
        std::cout << imap.lastErrorText() << "\r\n";
        return;
    }

    // Select an IMAP mailbox
    success = imap.SelectMailbox("Inbox");
    if (success == false) {
        std::cout << imap.lastErrorText() << "\r\n";
        return;
    }

    // Get the message IDs of all the emails in the mailbox
    bool fetchUids = true;
    CkMessageSet messageSet;
    success = imap.QueryMbx("ALL",fetchUids,messageSet);
    if (success == false) {
        std::cout << imap.lastErrorText() << "\r\n";
        return;
    }

    // Fetch the emails into a bundle object:
    CkEmailBundle bundle;
    bool headersOnly = false;
    success = imap.FetchMsgSet(headersOnly,messageSet,bundle);
    if (success == false) {
        std::cout << imap.lastErrorText() << "\r\n";
        return;
    }

    // Loop over the bundle and display the FROM and SUBJECT of each.
    CkEmail email;
    int i = 0;
    int numEmails = bundle.get_MessageCount();
    while (i < numEmails) {
        bundle.EmailAt(i,email);

        std::cout << email.ck_from() << "\r\n";
        std::cout << email.subject() << "\r\n";
        std::cout << "--" << "\r\n";
        i = i + 1;
    }

    // Disconnect from the IMAP server.
    success = imap.Disconnect();
    }