Search IMAP Mailbox for Email Matching Criteria

Searching an IMAP mailbox for messages that match search criteria.

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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 <CkMessageSet.h>
// Needs #include <CkEmailBundle.h>
// Needs #include <CkEmail.h>

    CkString strOut;

    CkImap imap;

    bool success;

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

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

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

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

    CkMessageSet *messageSet = 0;
    //  We can choose to fetch UIDs or sequence numbers.
    bool fetchUids;
    fetchUids = true;

    //  Here are examples of different search criteria:

    //  Return all messages.
    const char * allMsgs;
    allMsgs = "ALL";

    //  Search for already-answered emails.
    const char * answered;
    answered = "ANSWERED";

    //  Search for messages on a specific date.
    //  The date string is DD-Month-YYYY where Month is
    //  Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, or Dec.
    const char * onDate;
    onDate = "SENTON 05-Mar-2007";

    //  Search for messages between two dates.  SENTBEFORE
    //  finds emails sent before a date, and SENTSINCE finds
    //  email sent on or after a date.  The "AND" operation
    //  is implied by joining criteria, separated by spaces.
    const char * betweenDates;
    betweenDates = "SENTSINCE 01-Mar-2007 SENTBEFORE 05-Mar-2007";

    //  Another example of AND: find all unanswered emails
    //  sent after 04-Mar-2007 with "Problem" in the subject:
    const char * complexSearch1;
    complexSearch1 = "UNANSWERED SENTSINCE 04-Mar-2007 Subject \"Problem\"";

    //  Find messages with a specific string in the body:
    const char * bodySearch;
    bodySearch = "BODY \"problem solved\"";

    //  Using OR.  The syntax is OR <criteria1> <criteria2>.
    //  The "OR" comes first, followed by each criteria.
    //  For example, to match all emails with "Help" or "Question" in the subject.
    //  You'll notice that literal strings may be quoted or unquoted.
    //  If a literal contains SPACE characters, quote it:
    const char * orSearch;
    orSearch = "OR SUBJECT Help SUBJECT Question";

    //  ----------------------------------------------
    //  Strings are case-insensitive when searching....
    //  ----------------------------------------------

    //  Find all emails sent from yahoo.com addresses:
    const char * fromSearch;
    fromSearch = "FROM yahoo.com";
    //  Find all emails sent from anyone with "John" in their name:
    const char * johnSearch;
    johnSearch = "FROM John";

    //  Find emails with the RECENT flag set:
    const char * recentSearch;
    recentSearch = "RECENT";

    //  Find emails that don't have the recent flag set:
    const char * notRecentSearch;
    notRecentSearch = "NOT RECENT";
    //  This is synonymous with "OLD":
    const char * oldSearch;
    oldSearch = "OLD";

    //  Find all emails marked for deletion:
    const char * markedForDeleteSearch;
    markedForDeleteSearch = "DELETED";

    //  Find all emails having a specified header field with a value
    //  containing a substring:
    const char * headerSearch;
    headerSearch = "HEADER DomainKey-Signature paypal.com";

    //  Find any emails having a specific header field.  If the
    //  2nd argument to the "HEADER" criteria is an empty string,
    //  any email having the header field is returned regardless
    //  of the header field's content.
    //  Find any emails with a DomainKey-Signature field:
    const char * headerExistsSearch;
    headerExistsSearch = "HEADER DomainKey-Signature \"\"";

    //  Find NEW emails: these are emails that have the RECENT flag
    //  set, but not the SEEN flag:
    const char * newSearch;
    newSearch = "NEW";

    //  Find emails larger than a certain number of bytes:
    const char * sizeLargerSearch;
    sizeLargerSearch = "LARGER 500000";

    //  Find emails marked as seen or not already seen:
    const char * seenSearch;
    seenSearch = "SEEN";
    const char * notSeenSearch;
    notSeenSearch = "NOT SEEN";

    //  Find emails having a given substring in the TO header field:
    const char * toSearch;
    toSearch = "TO support@chilkatsoft.com";
    //  A more long-winded way to do the same thing:
    const char * toSearch2;
    toSearch2 = "HEADER TO support@chilkatsoft.com";

    //  Find emails smaller than a size in bytes:
    const char * smallerSearch;
    smallerSearch = "SMALLER 30000";

    //  Find emails that have a substring anywhere in the header
    //  or body:
    const char * fullSubstringSearch;
    fullSubstringSearch = "TEXT \"Zip Component\"";

    //  Pass any of the above strings here to test a search:
    messageSet = imap.Search(orSearch,fetchUids);
    if (messageSet == 0 ) {
        strOut.append(imap.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Fetch the email headers into a bundle object:
    CkEmailBundle *bundle = 0;
    bundle = imap.FetchHeaders(*messageSet);
    if (bundle == 0 ) {
        delete messageSet;
        strOut.append(imap.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Display the Subject and From of each email.
    long i;
    for (i = 0; i <= bundle->get_MessageCount() - 1; i++) {
        CkEmail *email = 0;
        email = bundle->GetEmail(i);

        strOut.append(email->getHeaderField("Date"));
        strOut.append("\r\n");
        strOut.append(email->subject());
        strOut.append("\r\n");
        strOut.append(email->ck_from());
        strOut.append("\r\n");
        strOut.append("--");
        strOut.append("\r\n");

        delete email;
    }

    //  Disconnect from the IMAP server.
    imap.Disconnect();

    delete messageSet;
    delete bundle;

    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());