SendGrid Sends 22B Emails for Spotify, Foursquare, Airbnb and Others

SendGrid, the popular email delivery service that sends personalized notifications and confirmations for social applications like Foursquare, said this week it has sent 20 billion emails since launching in late 2009. Actually, make that 22 billion, according to the live count on its Web site. SendGrid’s 30,000 customers include Spotify, Airbnb, Twilio, SlideShare, Gowalla and Path.