Sendgrid is fantastic. Well-documented, easy-to-use, and full-featured. We recently set it up for a client and were impressed with the stats in particular. Pos

Sendgrid is fantastic. Well-documented, easy-to-use, and full-featured. We recently set it up for a client and were impressed with the stats in particular. Postmark looks nice too. I'd be inclined to trust my money to the same crew that runs Beanstalk.