# `mailbox_disabled`: the mailbox exists but its provider has disabled it

The server recognised the address but reported the account as disabled, suspended or deactivated. Mail to it is rejected.

- Appears in: `reason`
- Verdict: undeliverable
- Billing: Free. Undeliverable verdicts never cost a credit.

Unlike a mailbox that was never created, a disabled mailbox was real once: a closed account, a suspended user, a deprovisioned employee. The provider still rejects mail for it, so the verdict is undeliverable.

smtp_reason is disabled. Like mailbox_not_found, the address joins your suppression list.

**What to do.** Remove the address. Disabled accounts rarely come back, and when they do the owner will typically subscribe again.

```json
{
    "email": "former.employee@acme.com",
    "deliverable": "undeliverable",
    "reason": "mailbox_disabled",
    "smtp_reason": "disabled",
    "mailbox_exists": false
}
```

Reference: https://spaw.co/docs/reasons/mailbox_disabled