Sending git notifications via Gmail SMTP server

send_mail()
{
#       if [ -n "$envelopesender" ]; then
#               /usr/sbin/sendmail -t -f "$envelopesender"
#       else
#               /usr/sbin/sendmail -t
#       fi
        /path/to/bin/sendmail.php
}

#!/usr/bin/php -d include_path=/usr/share/pear
<?php
//  % pear install Mail_mimeDecode
require_once "Mail.php";
require_once "Mail/mimeDecode.php";
 
$from = "Agent Smith <your-gmail-address@gmail.com>";
$to   = "Developers <it-might-be-your-mailing-list@example.com>";
 
$original = file_get_contents('php://stdin'); // will receive data via hooks/post-receive
$decoder = new Mail_mimeDecode($original);
$mail = $decoder->decode(array('include_bodies' => true, 'decode_bodies' => true, 'decode_headers' => true));
 
$host = "tls://smtp.gmail.com";
$port = 465;
$username = "your-gmail-address@gmail.com";// Google Apps also works
$password = "***your password***";
 
$headers = array(
    'From' => $from,
    'To' => $to,
    'Subject' => $mail->headers['subject']);
$smtp = Mail::factory('smtp',
    array ('host' => $host,
    'port' => $port,
    'auth' => true,
    'username' => $username,
    'password' => $password));
 
$mail = $smtp->send($to, $headers, $mail->body);
 
if (PEAR::isError($mail)) {
    echo $mail->getMessage(), PHP_EOL;
} else {
    echo 'Message successfully sent!', PHP_EOL;
}