Mailpit

Mailpit is a multi-platform email testing tool and an API that acts as an SMTP server and provides a web interface to view all captured emails. It also contains an API for automated integration testing.

Mailpit is a small, fast, low memory, zero-dependency, multi-platform email testing tool & API for developers.

It acts as an SMTP server, provides a modern web interface to view & test captured emails, and contains an API for automated integration testing.

Mailpit was originally inspired by MailHog which is now no longer maintained and hasn't seen active development for a few years now.