> ## Documentation Index
> Fetch the complete documentation index at: https://docs.spark360.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Failure Notifications

> Warning and abandonment email behavior for repeated delivery failures.

Spark360 sends operational warning and abandonment emails to organization owner/admin users when endpoint failures persist.

| Attempt | Action         | Email behavior    |
| ------- | -------------- | ----------------- |
| 1-3     | Retry silently | No email          |
| 4       | Retry          | Warning email     |
| 5       | Abandon        | Abandonment email |

Warning email summary:

* Endpoint is failing
* May be paused in approximately 4 hours if failures continue
* Includes endpoint URL, HTTP response, and Settings > Webhooks link

Abandonment email summary:

* Endpoint paused after 5 consecutive failures
* Includes endpoint URL, HTTP response, and Settings > Webhooks link

<Note>
  Email sends are non-blocking and must not interrupt the delivery worker loop.
</Note>