docs/main/end-user-guide/preferences/manage-your-thread-reply-notifications.mdx
You're notified in a web browser, the desktop app, and on your mobile device, for threads you're following when you're @mentioned or the messages contain a keyword you're tracking.
<Tip>You won't receive notifications for threads you're not following, or thread replies when they don't @mention you directly. However, blue message indicators show you unread thread replies you're not following in a given public or private channel.
For all other messages, a channel appears bolded to indicate unread messages.
You can follow all threads in a channel automatically by going to Channel Settings > Notification Preferences > Follow all threads in this channel and enable the Automatically follow threads in this channel.
If your organization doesn't use threaded discussions, or you have opted out of threaded discussions, you can configure Mattermost to notify you when someone replies to a thread you started, or have participated in. Go to Settings > Notifications > Reply notifications to choose one of 3 options:
Want to automatically reply to direct messages when you're out of office? When your system admin enables the ability for you to do so, you can configure Mattermost to send custom replies to direct messages by going to Settings > Notifications > Automatic Direct Message Replies, selecting Enable, and composing your automatic reply message.
No. Mobile app notifications only indicate unread threads with @mentions, and not general unread activity.
Using Mattermost in a web browser or the desktop app, the Threads list bolds unread threads that don't contain @mentions.