Isn't it for transactional emails? If you had to send say 300k emails a month, it is going to cost more than 200$. Looks like the big advantage of mandrill ove

Isn't it for transactional emails? If you had to send say 300k emails a month, it is going to cost more than 200$. Looks like the big advantage of mandrill over mailchimp is that the number of subscribers is unlimited.