The Verifalia Ruby SDK by Verifalia allows communication with the API to implement email verification features into applications. Resources include installation code, setup work, and email validations example. Official SDK.
Rebelmail publicly launched its interactive email API. After successful private integrations with ESPs like Mailjet, SendGrid, and others; Rebelmail is ready for third party integrations across the board. Through the API, users can build, send, and track interactive emails directly within an app.
Security researchers have discovered a secret API in Microsoft Office 365 that gives investigators access to detailed information about activities that take place within Office 365. It makes available information about attachment, read and search activities, along with a variety of metadata.