librenms-librenms/includes/html/graphs/application/postfix_messages.inc.php

<?php
$name = 'postfix';
$app_id = $app['app_id'];
$scale_min     = 0;
$colours       = 'mixed';
$unit_text     = 'Messages';
$unitlen       = 8;
$bigdescrlen   = 9;
$smalldescrlen = 9;
$dostack       = 0;
$printtotal    = 0;
$addarea       = 1;
$transparency  = 15;

$rrd_filename = rrd_name($device['hostname'], array('app', $name, $app_id));

if (rrdtool_check_rrd_exists($rrd_filename)) {
    $rrd_list = array(
        array(
            'filename' => $rrd_filename,
            'descr'    => 'Received',
            'ds'       => 'received',
            'colour'   => '582A72'
        ),
        array(
            'filename' => $rrd_filename,
            'descr'    => 'Delivered',
            'ds'       => 'delivered',
            'colour'   => '28774F'
        ),
        array(
            'filename' => $rrd_filename,
            'descr'    => 'Deferred',
            'ds'       => 'deferred',
            'colour'   => 'AA6C39'
        ),
        array(
            'filename' => $rrd_filename,
            'descr'    => 'Bounced',
            'ds'       => 'bounced',
            'colour'   => '88CC88'
        ),
        array(
            'filename' => $rrd_filename,
            'descr'    => 'Rejected',
            'ds'       => 'rejected',
            'colour'   => 'D46A6A'
        ),
        array(
            'filename' => $rrd_filename,
            'descr'    => 'Reject Warnings',
            'ds'       => 'rejectw',
            'colour'   => 'FFD1AA'
        ),
        array(
            'filename' => $rrd_filename,
            'descr'    => 'Held',
            'ds'       => 'held',
            'colour'   => '582A72'
        ),
        array(
            'filename' => $rrd_filename,
            'descr'    => 'Discarded',
            'ds'       => 'discarded',
            'colour'   => 'AA5439'
        )
    );
} else {
    echo "file missing: $rrd_filename";
}

require 'includes/html/graphs/generic_multi_line_exact_numbers.inc.php';