You got **Email sending is blocked** because payment is past due. Campaigns and workflow runs are parked. New workflow triggers are not queued.

## What to change

1. Open **Settings → Billing → Plan** (or **Resolve billing** on the notification).
2. Pay the outstanding invoice / update the card.
3. When the plan is active again, Lumail resumes sending and releases parked campaign and workflow mail. You’ll get **Email sending resumed**.

DNS changes do not unblock this. Domain fallback does not bypass a billing pause.

If checkout fails, email [support@lumail.io](mailto:support@lumail.io) with the org slug.

## Related

- [How to fix a monthly email limit](/docs/deliverability/how-to-fix-monthly-email-limit)
- [How to fix an admin sending pause](/docs/deliverability/how-to-fix-admin-sending-pause)