sendmail.php

<?php
/**
 *
 * The Sendmail script allows DesktopServer to route low-level email to a file in
 * a self purging folder that cleans up itself after 48 hours.
 *
 * @package DesktopServer
 * @since 3.8.0
 */

// Write mail to temp/mail folder
$mail_folder = "/Applications/MAMP/tmp/mail";

# create a filename for the eml file
$i = 1;
do {
	$filename = $mail_folder . '/'. date('Y-m-d_H.m.s-') . '.eml';
}while( is_file($filename) === true );

# write the email contents to the file
$email_contents = fopen('php://stdin', 'r');
$fstat = fstat($email_contents);
file_put_contents($filename, $email_contents);

// Clean up files older than 2 days
if (file_exists($mail_folder)) {
	foreach (new DirectoryIterator($mail_folder) as $fileInfo) {
		if ($fileInfo->isDot()) {
			continue;
		}
		if (time() - $fileInfo->getCTime() >= 2*24*60*60) {
			unlink($fileInfo->getRealPath());
		}
	}
}