To quickly silence notifications for short periods of time, click on the HubSpot Sales icon in the top-right corner of your Chrome browser. Then click the gear icon. Here, you'll see an on/off toggle which silences notifications.

• If you switch the toggle off (no check mark), HubSpot Sales will still track emails, but the real-time notifications will be silenced for 24 hours.
• Turning the toggle back on will re-enable real-time notifications.
• You can always view silenced notifications by clicking the HubSpot Sales icon or by viewing your activity feed under Sales Tools > Activity Feed.
• This notification toggle will reset each day. 

If you're using the HubSpot Sales Windows tray app instead, right-click on the HubSpot icon on your PC and select Pause Notifications. 

Alternatively, you can mute notifications for particular email threads by clicking More > Mute. Additionally, if you would like to delete a notification from your activity feed, click the X icon to permanently remove the notification from your feed.