#user  nobody;

worker_processes  2;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;
    keepalive_timeout  65;

    server {
        listen       80;
        server_name  localhost;

        location / {
            try_files $uri $uri/ /index.php;
            root   html;
            index  index.php index.html index.htm;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        location ~ .php$ {
            root           html;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
        }
    }
}

mail {
    server_name 192.168.1.104;
    auth_http   192.168.1.104/auth.php;
    auth_http_header X-Auth-Key "secret_string";
    auth_http_timeout 60s;

    proxy  on;
    xclient off;

    smtp_auth login plain cram-md5;
    pop3_auth plain apop cram-md5;

    imap_capabilities   IMAP4rev1 UIDPLUS   IDLE LITERAL+ QUOTA;
    pop3_capabilities   LAST TOP USER PIPELINING UIDL;
    smtp_capabilities   "SIZE 20480000" ENHANCEDSTATUSCODES 8BITMIME DSN;

    server {
        listen  26 so_keepalive=on;
        protocol  smtp;
    }
    server {
        listen    111  so_keepalive=on;
        protocol  pop3;
        proxy_pass_error_message    on;

    }
    server {
        listen   144  so_keepalive=on;
        protocol imap;
    }
}

<?php
date_default_timezone_set('Asia/Taipei');
include("PHPMailerAutoload.php");
$mail= new PHPMailer();
$mail->IsSMTP();
$mail->SMTPAuth = true;
$mail->SMTPSecure = false;
$mail->Host = "192.168.1.104";
// If I use port 25, it will work well. But if so, that doesn't through a proxy.
$mail->Port = 26;
$mail->CharSet = "UTF-8";

$mail->Username = "mail01@192.168.1.104";
$mail->Password = "123456";

$mail->From = "mail01@192.168.1.104";
$mail->FromName = "Test Name";

$mail->Subject = "Test Subject";
$mail->Body = "Hello! Here is body ";
$mail->IsHTML(true);
$mail->AddAddress("mail01@192.168.1.104", "Mark");
if(!$mail->Send()) {
    echo "Mailer Error: " . $mail->ErrorInfo;
} else {
    echo "Message sent!";
}
?>

<?php
// If I use port 143, it will work well. But if so, that doesn't through a proxy.
$hostname = '{192.168.1.104:144}INBOX';
$username = 'mail01@192.168.1.104';
$password = '123456';

$inbox = imap_open($hostname,$username,$password) or die('Cannot connect to hmail server: ' . imap_last_error());

$emails = imap_search($inbox,'ALL');

if($emails) {
    $output = '';
    rsort($emails);

    foreach($emails as $email_number) {
        $overview = imap_fetch_overview($inbox,$email_number,0);
        $message = imap_fetchbody($inbox,$email_number,1);

        $output.= '<div class="toggler '.($overview[0]->seen ? 'read' : 'unread').'">';
        $output.= '<span class="subject">'.$overview[0]->subject.'</span> ';
        $output.= '<span class="from">'.$overview[0]->from.'</span>';
        $output.= '<span class="date">on '.$overview[0]->date.'</span>';
        $output.= '</div>';

        $output.= '<div class="body">'.$message.'</div>';
        $output.= '<br>';
    }
    echo $output;
}
imap_close($inbox);
?>

<?php
if (!isset($_SERVER["HTTP_AUTH_USER"] ) || !isset($_SERVER["HTTP_AUTH_PASS"] )){
  fail();
}

$username=$_SERVER["HTTP_AUTH_USER"] ;
$userpass=$_SERVER["HTTP_AUTH_PASS"] ;
$protocol=$_SERVER["HTTP_AUTH_PROTOCOL"] ;

// default backend port
$backend_port=110;

if ($protocol=="imap") {
  $backend_port=143;
}

if ($protocol=="smtp") {
  $backend_port=25;
}

if($username == "mail01@192.168.1.104"){
    $server_ip = "192.168.1.104";
}

pass($server_ip, $backend_port);

function fail(){
  header("Auth-Status: Invalid login or password");
  exit;
}

function pass($server,$port){
  header("Auth-Status: OK");
  header("Auth-Server: $server");
  header("Auth-Port: $port");
  exit;
}
?>