We currently use Ontraport as our email database management system. Is there any way to integrate rezgo with Ontraport to automatically add the email addresses of people that purchase tickets to our database?
Rezgo has an API and web hook functionality that is specifically designed for this kind of integration. Since Ontraport has it's own API as well, you could have a developer connect the two APIs together to accomplish what you need. You can find API documentation here: https://www.rezgo.com/api-documentation/