Notification Center

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 found a previously working DNS record that stopped resolving, with a Check domain link

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.

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.

You can also ask Adamko “Any new notifications?” — he reads your unread notifications and summarizes them in chat.

Configure API failure and DNS health alerts

Usage, traffic, and delivery performance at a glance