SendGrid is a cloud-based service that exposes and easy-to-use API to send emails from your apps, and Appcelerator apps are no exception. Sendgrid just published an Appcelerator library that makes it even easier to use. To use it, first sign up for a free SendGrid account at https://sendgrid.com. The user name and password you choose will be the ones you’ll use for the library. The library is curr