SendGrid

On average 20% of legitimate email never reaches the inbox. SendGrid solves this problem for thousands of companies, delivering millions of messages to the inbox every day.

SendGrid replaces your outbound email infrastructure, so you don’t have to build, scale, and maintain email servers on your own. By delivering email on your behalf, the company allows you to focus on what your business does well, while also enjoying improved deliverability, insight from analytics, on-demand scalability, and APIs.