C++

Process New Email by Scanning for Senders

Scan email and save application-selected emails to EML files with unique filenames. 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;

    // Connect to an IMAP server.
    // Use TLS
    imap.put_Ssl(true);
    imap.put_Port(993);
    success = imap.Connect("imap.example.com");
    if (success == false) {
        std::cout << imap.lastErrorText() << "\r\n";
        return;
    }

    // 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;
    }

    // We can choose to fetch UIDs or sequence numbers.
    bool fetchUids = true;

    // Fetch messages from the mailbox using a search criteria.
    // This example finds NEW emails: these are emails that have the RECENT flag set, but not the SEEN flag:
    CkMessageSet messageSet;
    success = imap.QueryMbx("NEW",fetchUids,messageSet);
    if (success == false) {
        std::cout << imap.lastErrorText() << "\r\n";
        return;
    }

    // This example will download headers, and then download
    // the full email for those emails sent from a contact
    // in our database.

    // When downloading headers, each email object contains
    // (obviously) the headers, but the body will be missing.
    // Also, attachments will not be included.  However, it is
    // possible to get information about the attachments
    // as well as the complete size of the email.
    CkEmailBundle bundle;
    bool headersOnly = true;
    success = imap.FetchMsgSet(headersOnly,messageSet,bundle);
    if (success == false) {
        std::cout << imap.lastErrorText() << "\r\n";
        return;
    }

    // Loop over the email objects...
    CkEmail emailHeader;
    CkEmail fullEmail;
    int i = 0;
    int numEmails = bundle.get_MessageCount();
    while (i < numEmails) {
        bundle.EmailAt(i,emailHeader);

        // The sender's email address and name are available
        // in the From, FromAddress, and FromName properties.
        // If the sender is "Chilkat Support <support@chilkatsoft.com",
        // then the From property will hold the entire string.
        // the FromName property contains"Chilkat Support",
        // and the FromAddress property contains "support@chilkatsoft.com"
        std::cout << emailHeader.ck_from() << "\r\n";
        std::cout << emailHeader.fromAddress() << "\r\n";
        std::cout << emailHeader.fromName() << "\r\n";

        // Assume at this point your code checks to see if the sender
        // is one in your contacts database.  If so, this is
        // the code you would write to download the entire
        // email and save it to a file.

        // The ckx-imap-uid header field is added when
        // headers are downloaded.  This makes it possible
        // to get the UID from the email object.
        const char *uidStr = emailHeader.getHeaderField("ckx-imap-uid");
        int uid = atoi(uidStr);

        success = imap.FetchEmail(false,uid,true,fullEmail);
        if (success == false) {
            std::cout << imap.lastErrorText() << "\r\n";
            return;
        }

        // You can use the GenerateFilename method to
        // generate a unique filename...
        const char *filename = fullEmail.generateFilename();

        // SaveEml saves the entire email, including attachments.
        success = fullEmail.SaveEml(filename);

        std::cout << "--" << "\r\n";

        i = i + 1;
    }

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