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(MFC) Examine Junk/NonJunk Flags on Outlook.com and GMail

Examines the Junk and NonJunk FLAGS for IMAP on Outlook.com and GMail.com.

Chilkat C/C++ Library Downloads

MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkImap.h>

void ChilkatSample(void)
    {
    CkString strOut;

    CkImap imap;

    // This example assumes Chilkat Imap to have been previously unlocked.
    // See Unlock Imap for sample code.

    // Connect to the outlook.com IMAP server.
    // We'll do the same for GMail below..
    // Use TLS
    imap.put_Ssl(true);
    imap.put_Port(993);
    bool success = imap.Connect("imap-mail.outlook.com");
    if (success != true) {
        strOut.append(imap.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

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

    // Begin keeping a log of the session here.
    imap.put_KeepSessionLog(true);

    // 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;
    }

    // The LastResponse property contains the full response of the last command.
    // The response to the SELECT mailbox command shows the FLAGS that can be set
    // for emails in the mailbox.
    const char *selectResponse = imap.lastResponse();
    strOut.append(selectResponse);
    strOut.append("\r\n");

    // The response to "SELECT Inbox" looks like this:
    // There are no FLAGS for Junk/NonJunk..

    // * 4 EXISTS
    // * 0 RECENT
    // * FLAGS (\Seen \Answered \Flagged \Deleted \Draft $MDNSent)
    // * OK [PERMANENTFLAGS (\Seen \Answered \Flagged \Deleted \Draft $MDNSent)] Permanent flags
    // * OK [UIDVALIDITY 14] UIDVALIDITY value
    // * OK [UIDNEXT 1719] The next unique identifier value
    // aaac OK [READ-WRITE] SELECT completed.

    // Fetch the flags for each message in the mailbox.
    // Prior to running this example, (using Mozilla Thunderbird) I marked one of the emails
    // in my outlook.com Inbox as Junk.  
    int sequenceNum = 1;
    while (sequenceNum <= imap.get_NumMessages()) {
        const char *flags = imap.fetchFlags(sequenceNum,false);
        strOut.appendInt(sequenceNum);
        strOut.append(": ");
        strOut.append(flags);
        strOut.append("\r\n");
        sequenceNum = sequenceNum + 1;
    }

    // The output of the above loop is this:

    // 	1: \Seen
    // 	2: \Seen
    // 	3: \Seen
    // 	4: \Seen

    // As you can see, nothing is marked as Junk/Spam.  This concurs with the list of FLAGS
    // documented in the response to the SELECT command.  Apparently, there is no flag for junk/nonjunk
    // for outlook.com.  Mozilla Thunderbird must be storing additional information about particular
    // emails locally.  (In other words, perhaps the Junk/NonJunk flag is information stored locally 
    // by Thunderbird, and is not a flag set on the server.)

    strOut.append("---- Session Log ----");
    strOut.append("\r\n");
    strOut.append(imap.sessionLog());
    strOut.append("\r\n");

    // The session log looks like this:

    // 	----IMAP REQUEST----
    // 	aaac SELECT "Inbox"
    // 	----IMAP RESPONSE----
    // 	* 4 EXISTS
    // 	* 0 RECENT
    // 	* FLAGS (\Seen \Answered \Flagged \Deleted \Draft $MDNSent)
    // 	* OK [PERMANENTFLAGS (\Seen \Answered \Flagged \Deleted \Draft $MDNSent)] Permanent flags
    // 	* OK [UIDVALIDITY 14] UIDVALIDITY value
    // 	* OK [UIDNEXT 1719] The next unique identifier value
    // 	aaac OK [READ-WRITE] SELECT completed.
    // 	----IMAP REQUEST----
    // 	aaad FETCH 1 (FLAGS)
    // 	----IMAP RESPONSE----
    // 	* 1 FETCH (FLAGS (\Seen))
    // 	aaad OK FETCH completed.
    // 	----IMAP REQUEST----
    // 	aaae FETCH 2 (FLAGS)
    // 	----IMAP RESPONSE----
    // 	* 2 FETCH (FLAGS (\Seen))
    // 	aaae OK FETCH completed.
    // 	----IMAP REQUEST----
    // 	aaaf FETCH 3 (FLAGS)
    // 	----IMAP RESPONSE----
    // 	* 3 FETCH (FLAGS (\Seen))
    // 	aaaf OK FETCH completed.
    // 	----IMAP REQUEST----
    // 	aaag FETCH 4 (FLAGS)
    // 	----IMAP RESPONSE----
    // 	* 4 FETCH (FLAGS (\Seen))
    // 	aaag OK FETCH completed.

    imap.Disconnect();

    // --------------------------------------------------------------------------------
    // Now let's check GMail..
    // Again, I've marked one email as Junk.

    imap.put_KeepSessionLog(false);
    imap.put_Ssl(true);
    imap.put_Port(993);
    success = imap.Connect("imap.gmail.com");
    if (success != true) {
        strOut.append(imap.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Login
    success = imap.Login("myAccount@gmail.com","GMAIL-IMAP-PASSWORD");
    if (success != true) {
        strOut.append(imap.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    imap.put_KeepSessionLog(true);

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

    selectResponse = imap.lastResponse();
    strOut.append(selectResponse);
    strOut.append("\r\n");

    // The response to GMail "SELECT Inbox" looks like this:

    // * FLAGS (\Answered \Flagged \Draft \Deleted \Seen $Forwarded $NotPhishing $Phishing $label1 $label2 $label3 $label4 $label5 Junk NonJunk)
    // * OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen $Forwarded $NotPhishing $Phishing $label1 $label2 $label3 $label4 $label5 Junk NonJunk \*)] Flags permitted.
    // * OK [UIDVALIDITY 3] UIDs valid.
    // * 46 EXISTS
    // * 0 RECENT
    // * OK [UIDNEXT 4147] Predicted next UID.
    // * OK [HIGHESTMODSEQ 403404]
    // aaai OK [READ-WRITE] Inbox selected. (Success)

    sequenceNum = imap.get_NumMessages();
    int minSeqNum = 1;
    if (sequenceNum > 10) {
        minSeqNum = sequenceNum - 10;
    }

    while (sequenceNum >= minSeqNum) {
        const char *flags = imap.fetchFlags(sequenceNum,false);
        strOut.appendInt(sequenceNum);
        strOut.append(": ");
        strOut.append(flags);
        strOut.append("\r\n");
        sequenceNum = sequenceNum - 1;
    }

    // The output (for GMail) of the above loop is this:

    // 	46: Junk \Seen
    // 	45: NonJunk \Answered \Seen
    // 	44: NonJunk \Seen
    // 	43: \Answered \Seen
    // 	42: \Answered \Seen
    // 	41: NonJunk \Seen
    // 	40: NonJunk \Answered \Seen
    // 	39: NonJunk \Seen
    // 	38: NonJunk \Seen
    // 	37: NonJunk \Seen
    // 	36: NonJunk \Seen

    // As you can see, the email I marked as "Junk" using Mozilla Thunderbird has the Junk flag set.
    // This concurs with GMail's list of FLAGS.  Apparently, since the IMAP server has a "Junk" flag,
    // Thunderbird set it when I marked the email as Junk. 

    imap.Disconnect();


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }

 

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