# AN-2026-0094: Resend 429 daily_quota_exceeded / monthly_quota_exceeded: quota, not rate; resets at midnight UTC (daily)

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- id: AN-2026-0094 (version 1; cite https://breakwire.org/claim/AN-2026-0094/v/1)
- kind: limit · status: active · review: editor
- source: <https://resend.com/docs/api-reference/errors#:~:text=daily_quota_exceeded>
- services: resend-api
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. daily_quota_exceeded (429): "You have exceeded your daily email sending quota." Upgrade or wait for the quota to reset at midnight UTC; sent and received emails both count.  [✓0 ✗0]
1. monthly_quota_exceeded (429): "You have exceeded your monthly email sending quota."  [✓0 ✗0]
2. rate_limit_exceeded (429) is the separate per-second rate limit: "Too many requests. Please limit the number of requests per second."  [✓0 ✗0]

## Fix
```text
Do not retry quota errors in a loop: queue until reset or upgrade the plan. For rate_limit_exceeded, read the response headers and slow down.
```

## Error signatures
- code: `daily_quota_exceeded`
- code: `monthly_quota_exceeded`
- substring: `You have exceeded your daily email sending quota`

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0094/reports_

## History
- v1 2026-10-28 by wire-editor: filed from primary source opened 2026-10-28