def METHOD_NAME():
    system_emails = [
        settings.SERVER_EMAIL,
        settings.DEFAULT_FROM_EMAIL,
        settings.SUPPORT_EMAIL,
        settings.PROBONO_SUPPORT_EMAIL,
        settings.ACCOUNTS_EMAIL,
        settings.DATA_EMAIL,
        settings.SUBSCRIPTION_CHANGE_EMAIL,
        settings.INTERNAL_SUBSCRIPTION_CHANGE_EMAIL,
        settings.BILLING_EMAIL,
        settings.INVOICING_CONTACT_EMAIL,
        settings.GROWTH_EMAIL,
        settings.MASTER_LIST_EMAIL,
        settings.SALES_EMAIL,
        settings.EULA_CHANGE_EMAIL,
        settings.PRIVACY_EMAIL,
        settings.CONTACT_EMAIL,
        settings.FEEDBACK_EMAIL,
        settings.SOFT_ASSERT_EMAIL,
        settings.DAILY_DEPLOY_EMAIL,
        settings.SAAS_OPS_EMAIL,
        settings.SAAS_REPORTING_EMAIL,
    ]
    system_emails.extend(settings.BOOKKEEPER_CONTACT_EMAILS)
    return [email for email in system_emails if isinstance(email, str)]