Nylas

Nylas is the only unified communications platform that allows developers to connect to every email, calendar, and contacts provider in the world. The Nylas Universal APIs are secure, reliable, and easy to use. With a single integration that can be completed in days, pre-built security and compliance features, and a 99.99% guaranteed uptime, Nylas removes the complexity of building and maintaining direct integrations with Gmail, Outlook, Exchange, and all the rest. Get your free API key > https://dashboard.nylas.com/register