
Click the Settings icon in the top-right corner of the Bookings menu bar, then select General.
From the left pane, click Domain Authentication to view the list of added custom domains.
Click the Validate button next to the domain you want to authenticate. A Domain Authentication slider will open.
Hover over the SPF and DKIM records each and click Copy. Paste these records into your domain provider's DNS settings.
Once the records are added, return to Bookings and click Validate Now at the bottom. The DNS changes will be applied immediately, and the domain's authentication status will update to Validated.
The authentication process is now complete.