Function applyBanList

apps/sim/lib/messaging/email/mailer.ts:57–64

* Drop recipients that are on the AppConfig access-control ban list. Returns the * original options when nothing is banned, options narrowed to the allowed * recipients when some are, or `null` when every recipient is banned. Config is * cached (~30s TTL) with an env fallback, so a missing/unreac

(options: EmailOptions)

 * fails open rather than blocking all mail.
 */
async function applyBanList(options: EmailOptions): Promise<EmailOptions | null> {
  const recipients = Array.isArray(options.to) ? options.to : [options.to]
  const config = await getAccessControlConfig()
  const allowed = recipients.filter((email) => !isEmailBlockedByAccessControl(email, config))
  if (allowed.length === 0) return null
  if (allowed.length === recipients.length) return options
  return { ...options, to: allowed.length === 1 ? allowed[0] : allowed }
}

export async function sendEmail(options: EmailOptions): Promise<SendEmailResult> {
  try {