Hey there CYGLO! You can have an automated email sent to contacts created via MindBody. Currently, the only way to do this is to use date-based automation. Here's a brief overview of date-based automation triggers:
To set this up for the synced MindBody contacts, you would want to choose the MindBody sync group as your audience in Emma, and the MindBody date field you sync with Emma as the Date-Based Trigger field. Most likely this is the "Profile Creation Date" in MindBody. Something else to keep in mind is that, because the sync happens only once per day, there could be a 24-48 hour delay before your contacts land in Emma. So, when you set up your automation, you'll want to start the workflow a few days after the date in the "Profile Creation Date" field. This will ensure that the automation workflow triggers effectively and your contact will receive your mailing!