A Rails Engine to preview, manage, and test email templates directly in the browser.
Maily is a Rails Engine that provides a dashboard for previewing, managing, and testing email templates in Rails applications. It automatically collects all email templates from the app and allows developers to view them in the browser, edit content in development, and send test emails. It solves the problem of cumbersome email testing by integrating directly into the Rails environment.
Rails developers and teams who need to preview, test, and manage email templates within their applications, particularly those working on apps with complex email systems.
Developers choose Maily because it integrates seamlessly as a Rails Engine, offers a clean interface for email management, supports flexible data hooks and versions, and eliminates the need for external email testing tools.
📫 Rails Engine to preview emails in the browser
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As a mountable engine, Maily can be added with a generator that automates routing and setup, minimizing manual configuration for Rails apps.
The hooks system supports lazy evaluation with callable objects, allowing dynamic data population for emails and easy testing with realistic scenarios.
Enables multiple versions of emails for different cases, such as trial vs. gold accounts, through a simple DSL, enhancing template organization.
Offers authorization via custom base controllers or HTTP basic authentication, providing flexibility to restrict dashboard access based on team needs.
Template editing is blocked in production due to Rails' code reloading limitations and security risks, hindering real-time updates without server restarts.
Designed solely for Rails, making it unusable for other frameworks and adding engine overhead compared to framework-agnostic tools like mailcatcher.
Requires setting up hooks and initializers, which can be more complex than simpler alternatives, especially for apps with many email templates.