Yes. You are notified in two cases. First, when a customer replies in a ticket that is assigned to you. Second, when a new ticket arrives on a support channel that you can access and that you ticked under Settings > Notifications (New Tickets). You do not get a notification for every message on every channel.
Click the bell icon (labelled Notifications) in the left menu to see your notifications in DelightChat. You also get push notifications in your browser (click "Enable" in the Notifications panel and allow them in your browser) and in the DelightChat mobile app.
You can mute or unmute the notification sound by clicking the speaker icon next to the title Notifications (circled in the screenshot below). Notifications still arrive when the sound is muted. To choose which channels send you new-ticket alerts, go to Settings > Notifications.
