Pricing API Docs Integrations


Mailcheck was founded in 2016 by Thomas Petracco, a web developer with a passion for building simple yet useful products. Thomas created Mailcheck to prevent abuse of his own web applications and to help other developers improve email deliverability.

Originally called, the company was rebranded to in 2021. Mailcheck is a simple and powerful email verification API that helps businesses improve email deliverability by identifying invalid, disposable, and temporary email addresses.

Our API is used daily by thousands of developers and businesses worldwide to validate email addresses in real-time.