JoshData / python-email-validator

A robust email syntax and deliverability validation library for Python.

GagnDeep / mailysend

A Resend-compatible email platform on Cloudflare Workers — transactional sending, broadcasts, automations, inbound mail and deliverability analytics. MIT, one-click deployable into your own account.

MattKeeley / Spoofy

Spoofy is a program that checks if a list of domains can be spoofed based on SPF and DMARC records.