MailPoet sending does not work on WP Engine

I recently moved my WP site to WP Engine after self-hosting the past year. MailPoet is set to send all of my site emails including Woocommerce transactional emails. Since moving to WP Engine no emails send.

This would be expected behavior if MailPoet didn’t state it takes over all email sending the way I’d expect a Sendgrid or Mailgun to do. Does anyone know if there’s a configuration MailPoet just has failed to include in their docs? Otherwise, I’m about ready to ditch this plugin and Woocommerce.