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

# Notification Center

> The in-app notification center collects product announcements from Lettr and system events for your team, such as sent campaigns and DNS problems

The notification center is the bell icon in the top-right header bar. It collects two kinds of notifications in a single feed, sorted newest first:

* **Announcements** — product news and updates from the Lettr team, such as new features or scheduled maintenance. Some announcements include an action link to the relevant page.
* **System events** — things that happened in your team, generated automatically by Lettr.

## System Events

Lettr currently generates notifications for these events:

| Event                   | What it says                                                                                                                                                           |
| ----------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Campaign sent           | A campaign finished sending, with the recipient count and a **View campaign** link                                                                                     |
| Contacts export ready   | Your audience export is ready to download — the download link expires in 1 hour                                                                                        |
| DNS problem on a domain | A daily [DNS health check](/learn/settings/alerts#domain-dns-health-alerts) found a previously working DNS record that stopped resolving, with a **Check domain** link |

## Reading and Managing Notifications

* The bell shows an unread badge (capped at 99+).
* Click a notification to open its action link, or use **Mark all as read** to clear the badge.
* The feed loads 15 notifications at a time; use **Load more** to page back through history.

<Note>
  Read state is tracked per user, and the feed is scoped to the team you're currently viewing — switching teams shows that team's notifications.
</Note>

<Tip>
  You can also ask [Adamko](/learn/ai-assistant/introduction) *"Any new notifications?"* — he reads your unread notifications and summarizes them in chat.
</Tip>

## Related Topics

<CardGroup cols={2}>
  <Card title="Monitoring & Alerts" icon="bell" href="/learn/settings/alerts">
    Configure API failure and DNS health alerts
  </Card>

  <Card title="Dashboard" icon="gauge" href="/learn/settings/dashboard">
    Usage, traffic, and delivery performance at a glance
  </Card>
</CardGroup>