Mailgun - A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.
Shippn - Shop from 25+ countries that don't ship to your country.
Stripe for Gmail - Display customers Stripe information within inbound emails
Corrily - The all-in-one platform to design, test, deploy and analyze your monetization strategies across web and mobile
Amazon SES - Scale your business email & marketing messages with Amazon Simple Email Service (SES), a cost-effective and reliable cloud email service. Sign up today.
Shippo - Shipping, easy and affordable for everyone. A set of unified APIs and tools that instantly enables you to ship your goods internationally