I've often wondered why MailChimp doesn't offer more support for transactional mails. I know there is some stuff in the API but it seems bolted on (am I wrong?). I would really like to use the standard templating for email campaigns that MailChimp has, and use it for transactional mails. An API call to MailChimp with some some arguments would then send a template, the variables (dynamically) filled in, to the user.

Email campaigns are so easy in MailChimp and I'd like to maintain the look of those mails in my transactional mails. Nonetheless, you guys provide a great service!