Email service providers (ESPs) play a crucial role in facilitating modern email communication, but integrating them into applications poses significant challenges for developers due to the diverse languages and schemas used by providers like Google, Microsoft, Apple, and Yahoo. This complexity often requires extensive engineering resources to build and maintain unique integrations for each ESP, which can impact product decisions and potentially alienate parts of the user base. Despite the rise of other communication channels, email remains a dominant and resilient tool used by 98% of workers and consumers, making it vital for businesses to effectively integrate email-powered features to drive engagement and reduce churn. The business email market is largely dominated by Microsoft and Google, while the consumer market is more fragmented with various regional players. To address these integration challenges, the Nylas Email API offers a universal solution that connects to 100% of email service providers, standardizing data and eliminating the need for individual integrations, which saves resources and enhances application capabilities.