Step 1: Navigate to Settings > Emails & Actions to view your existing setup for Notification Emails and Confirmation Emails, which have dedicated sections on the page.
Step 2: To add a new email, click the buttons for Add a Notification Email or Add a Confirmation Email. If you want to edit an existing email (such as the default notification email), click Edit next to the email.
Step 3: Add or update relevant sections of the Email Settings panel, and click the button in the top right corner to save your email.
For tips on using this feature, check out this help article.