This page explains how to manage email notifications for your account. To access the settings:
In the top-right corner of the web app, click the current project's name to open the drop-down menu.
Choose Account settings.
On the left-hand panel, choose Email settings.
By default, users receive all categories of emails from Cmd which they are authorized to receive. To unsubscribe from any of these categories, deselect the checkbox next to it:
When satisfied, click Save.