I don't think it will kill off the likes of SendGrid. It might actually help expose Email-as-a-Service to potential customers who weren't aware that those compa

I don't think it will kill off the likes of SendGrid. It might actually help expose Email-as-a-Service to potential customers who weren't aware that those companies existed. In the end it could expand the market for everyone and end up benefiting the competition as well. Pick an Amazon Web Service and for most (all?) there are several standalone companies competing on quality, customer service, and ease of use. The problem for the competition is that Amazon's suite of services is getting more and more comprehensive and using ALL of their offerings really does lower development overhead (versus picking and choosing the best standalone Email/Queue/Storage/CPU offering).