Bubble does not yet expose the email confirmation code/cookie/thing for us to send using Postmark. But it was mentioned in their last monthly update as being on their roadmap.
Also defaulting to the bubble email confirmations for all newly registered users doesn’t even look professional… how is there no workaround for this?
Workaround is to create your own email confirmation flow and data type on the user.
Send the user a link then when clicked triggers a workflow to update the user and confirm their email.