10 Things I Wish I Knew before Hosting WordPress on Heroku

smtp.php

add_action( 'phpmailer_init', 'wph_phpmailer_init' );
function wph_phpmailer_init( PHPMailer $phpmailer ) {
	$phpmailer->IsSMTP();
	$phpmailer->SMTPAuth = true; // enable SMTP authentication
	$phpmailer->Port = 587; // set the SMTP server port
	$phpmailer->Host = 'smtp.mandrillapp.com'; // SMTP server
	$phpmailer->Username = 'MANDRILL_USERNAME'; // SMTP server username
	$phpmailer->Password = 'MANDRILL_API_KEY'; // SMTP server password
}

wp-config.php

define( 'DISALLOW_FILE_EDIT', false );
define( 'DISALLOW_FILE_MODS', false );