The Mailjet Python SDK by Mailjet, wraps the API to access email marketing data, useful to subscribe users in customized solutions. Resources show how to obtain a Key, make a GET request, send an email, and create a new contact.
Google has released an updated Gmail API that functionally replaces the Email Settings API. The Gmail API includes a number of new endpoints that enable features previously unavailable through any Google API. Developers have access to filters, auto-replies, send-as aliases, and more.
Mailgun added a slew of new features to its email validation API including target mailbox validation, role-based address check, disposable mailbox, reporting, and rate limits. Additionally, Mailgun added the API under its existing SLA and has transitioned to a tiered, usage-based pricing model.