Required config.php block
// Deliverability controls
define('MAILER_BASE_URL', 'https://email.remotecrw.com');
define('MAILER_TIMEZONE', 'Asia/Manila');
define('MIN_EMAILS_PER_RUN', 2);
define('MAX_EMAILS_PER_RUN', 5);
define('SEND_DELAY_MIN_SECONDS', 30);
define('SEND_DELAY_MAX_SECONDS', 120);
define('SENDING_WINDOW_START', '22:00');
define('SENDING_WINDOW_END', '07:00');
define('LOCK_FROM_DOMAIN', true);
define('COMPANY_MAILING_ADDRESS', 'RemoteCRW, Cebu, Philippines');
define('UNSUBSCRIBE_SECRET', CRON_SECRET);
define('DEFAULT_EMAIL_SIGNATURE', "Best,\nRemoteCRW Team\nhttps://remotecrw.com");