1. Create your Smoobu email address
1a) Go to Settings - Communication
1b) Create your Smoobu email address. You can only personalize the first part of it.
2. Add your Smoobu email address to the booking portals you work with
If you also add your new Smoobu address to your booking portals, you can also receive the notifications from the portals in your Smoobu account.
For Booking.com and Airbnb this is not necessary, since they have an API messaging integration. Read more here