> Mandrill has a `render` endpoint which makes this easy. None of the others have this yet. Campaign Monitor have the ability to take an API call and render in

> Mandrill has a `render` endpoint which makes this easy. None of the others have this yet. Campaign Monitor have the ability to take an API call and render into HTML using templates, this might do what you want: https://www.campaignmonitor.com/features/transactional-email/ https://www.campaignmonitor.com/features/transactional-email... (I'm unaffiliated with CM, just a customer)