mailhog ☆

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Description:
Web and API based SMTP testing tool

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: email smtp testing development mail-server

Install: brew install mailhog

About:
Mailhog is a tool for testing email during development. It creates a fake SMTP server that captures outgoing emails and provides a web interface to view them. This allows developers to test email functionality without sending real emails to users.

Key Features:

Built-in SMTP server that captures emails without sending them
Web UI for viewing captured emails with search and filtering
JSON API for automated testing and integration
HTTP API for releasing emails to real SMTP servers

Use Cases:

Testing email functionality in web applications during development
Debugging email templates and formatting issues
Automated testing of email delivery in CI/CD pipelines

Alternatives:

MailCatcher – Ruby-based alternative with similar functionality but requires Ruby runtime
FakeSMTP – Java-based SMTP server with GUI, requires Java runtime
smtp4dev – .NET-based alternative for Windows environments

Version History

Detected	Version	Rev	Change	Commit
Sep 14, 2024 9:10pm		0	VERSION_BUMP	b76c68c3