There are 2 repositories under deliverability topic.
Spoofy is a program that checks if a list of domains can be spoofed based on SPF and DMARC records.
Obtain an email full profile including reputation, consistency, deliverability, social networks account linked, plus more data points.
📧 Never end in spam with the world's most comprehensive email deliverability checklist
SocketLabs Email Delivery Python Client Library
Magento2 - Brevo (formerly Sendinblue) Integration Module
SocketLabs Email Delivery .NET Client Library
SocketLabs Email Delivery PHP Client Library
SocketLabs Email Delivery Node.js client library
SocketLabs Email Delivery Go Client Library https://www.socketlabs.com
Email Deliverability and DNS Records Checker
Magento2 - Brevo (formerly Sendinblue) "Contact sync only" Lightweight Integration Module
SocketLabs Email Delivery Java Client Library
Magento2 - Brevo (Sendinblue previously) Core Module (dependency of magento2-brevo-sendinblue and magento2-brevo-sendinblue-light)
QUEUEMAIL.DEV docs & examples
SocketLabs Email Delivery Ruby Client Library https://www.socketlabs.com