mail.php

<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

DEFINE('SERVIDOR', 'dominio.com.br'); 
DEFINE('PORTA', '143');
DEFINE('USUARIO', '[email protected]');
DEFINE('SENHA', 'senha');

/* connect to gmail */
$hostname = '{'.SERVIDOR.':'.PORTA.'/imap/novalidate-cert}INBOX.Sent';
$username = USUARIO;
$password = SENHA;

/* try to connect */
$inbox = imap_open($hostname,$username ,$password) or die('Cannot connect to Gmail: ' . imap_last_error());

/* grab emails */
$emails = imap_search($inbox,'ALL');

/* if emails are returned, cycle through each... */
if($emails) {

    /* begin output var */
    $output = '';

    /* put the newest emails on top */
    rsort($emails);

    /* for every email... */
    foreach($emails as $email_number) {

        /* get information specific to this email */
        $overview = imap_fetch_overview($inbox,$email_number,0);
        // echo "<pre>";
        // print_r($overview);

        // $output.= 'Name:  '.$overview[0]->from.'</br>';
        $output.= 'Email:  '.$overview[0]->message_id.'</br>';



    }

    echo $output;
} 

/* close the connection */
imap_close($inbox);
?>