Question

I would ask you if exist a possibility for retrieve only unreaded message via pop3.

Imap has UNSEEN flag so it can be done with some library.

But if I have only pop3? How can I retrieve only the un readed mails?

Thanks a lot.

Answer 1

POP3 does not support unread flag. Imap does 🙂 You can use the Zend Framework to handle this with imap.

I have done this to find “bounced” mails:

$subjectIfFailed = 'Delivery Status Notification (Failure)';
$bouncedMails = array();

$params = array(
    'user'     => $config->gmail->user,
    'host'     => $config->gmail->host,
    'password' => $config->gmail->password,
    'port'     => $config->gmail->port,
    'ssl'      => (bool) $config->gmail->ssl, 
);

$mailStorage = new Zend_Mail_Storage_Imap($params);

$count = $mailStorage->count();
$i = 1;

while ($i <= $count) {
    $message = $mailStorage->getMessage($i);

    if ($message->hasFlag(Zend_Mail_Storage::FLAG_SEEN) === false) {

        if (strtolower($message->getHeader('subject')) == 
            strtolower($subjectIfFailed)) {
                  $bouncedMails[] = $message->getHeader('x-failed-recipients');
        }           
    }
    $i++;
}

return $bouncedMails;