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Email and SMTP testing.

Testing frameworks
Our review

What we like

Acts as a mail server (SMTP or API) for testing emails from your code. Static binary so can easily be run in CI/CD. API allows querying of received emails so you can check they were correctly “sent”. Can persist mail to a SQLite database. Has a web UI to inspect mail e.g. for local development.

What we don't like

Designed for integration testing rather than as a library for unit testing or mocking - which is probably what you want for email tests, but means you need to configure it as a service. Includes Docker images to support this.

Reviewed: 2023-07-27

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