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There are several alternatives. Most of them, including mailcatcher, seem to be unmaintained.

Mailpit is an alternative that has regular updates: https://mailpit.axllent.org/

> Most of them, including mailcatcher, seem to be unmaintained.

MailCatcher is great. It "just works" and has Docker images for both AMD64 and ARM64 CPUs.

Thanks for the link - we’ve been using mailhog for local smtp testing and it still works ok for basic tasks, but it’s not maintained any more.