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

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

Chilkat Perl Downloads

Perl Module for Windows, Linux, Alpine Linux,
MAC OS X, Solaris, FreeBSD, OpenBSD,
Raspberry Pi and other single board computers

use chilkat();

$imap = chilkat::CkImap->new();

#  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(1);
$imap->put_Port(993);
$success = $imap->Connect("imap-mail.outlook.com");
if ($success != 1) {
    print $imap->lastErrorText() . "\r\n";
    exit;
}

#  Login
$success = $imap->Login('myAccount@outlook.com',"OUTLOOK_PASSWORD");
if ($success != 1) {
    print $imap->lastErrorText() . "\r\n";
    exit;
}

#  Begin keeping a log of the session here.
$imap->put_KeepSessionLog(1);

#  Select an IMAP mailbox
$success = $imap->SelectMailbox("Inbox");
if ($success != 1) {
    print $imap->lastErrorText() . "\r\n";
    exit;
}

#  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.
$selectResponse = $imap->lastResponse();
print $selectResponse . "\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.
$sequenceNum = 1;
while ($sequenceNum <= $imap->get_NumMessages()) {
    $flags = $imap->fetchFlags($sequenceNum,0);
    print $sequenceNum . ": " . $flags . "\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.)

print "---- Session Log ----" . "\r\n";
print $imap->sessionLog() . "\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(0);
$imap->put_Ssl(1);
$imap->put_Port(993);
$success = $imap->Connect("imap.gmail.com");
if ($success != 1) {
    print $imap->lastErrorText() . "\r\n";
    exit;
}

#  Login
$success = $imap->Login('myAccount@gmail.com',"GMAIL-IMAP-PASSWORD");
if ($success != 1) {
    print $imap->lastErrorText() . "\r\n";
    exit;
}

$imap->put_KeepSessionLog(1);

$success = $imap->SelectMailbox("Inbox");
if ($success != 1) {
    print $imap->lastErrorText() . "\r\n";
    exit;
}

$selectResponse = $imap->lastResponse();
print $selectResponse . "\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();
$minSeqNum = 1;
if ($sequenceNum > 10) {
    $minSeqNum = $sequenceNum - 10;
}

while ($sequenceNum >= $minSeqNum) {
    $flags = $imap->fetchFlags($sequenceNum,0);
    print $sequenceNum . ": " . $flags . "\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();

 

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