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<!-- Generated: 2026-07-02 | Updated: 2026-09-01 -->

# EventListener

## Purpose
Kernel / mailer event listeners.

## Key Files
| File | Description |
|------|-------------|
| `MailCatchAllListener.php` | When `MAILER_CATCH_ALL` is set, rewrites every outgoing message's recipients to that address (recette safety net). Empty in prod = no-op. |

## For AI Agents

### Working In This Directory
- Registered automatically (`autoconfigure`) — no manual tag needed.
- Audience measurement is **not** here anymore: it lives in `src/Service/Analytics/` (cookieless beacon `/t`), plus `src/Command/CronCommand.php` for aggregation/purge.

### External
- Symfony Mailer / HttpKernel events.

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