mailers

Automate ActionMailer email delivery and testing with SolidQueue async jobs.

Updated Mar 3, 2026

Search Tags:#testing #templates #mailer #rails #background-jobs #actionmailer

Ready to run

npx skills add https://github.com/pelletencate/iron-horse --skill mailers

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Please help me install this Agent Skill.
Skill: mailers
Source: https://github.com/pelletencate/iron-horse/tree/main/skills/mailers
Command: npx skills add https://github.com/pelletencate/iron-horse --skill mailers

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Email delivery in Rails apps can block requests and lead to unreliable notifications; this skill provides a structured approach to building, sending, and testing emails with ActionMailer using async delivery and templates.

Core Features & Use Cases

Automated email delivery and testing workflows for transactional and notification emails using ActionMailer with async processing via SolidQueue.
HTML and text templates, attachment handling, mailer previews, and robust test coverage to ensure correct content and delivery.
Use Case: When a user signs up, send a welcome email without blocking user requests, while still validating content in tests.

Quick Start

Configure ActionMailer with a default from address, create mailer classes and templates, and enable async delivery with deliver_later.

Frequently Asked Questions about mailers

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I send ActionMailer emails asynchronously with Rails?▼

This approach utilizes a SolidQueue-backed background job system to process email delivery across development, staging, and production environments without delaying the main application thread.

How do I test ActionMailer email content and recipients in Rails?▼

You can validate transactional and notification emails by checking delivery details and body content within your test suite to ensure reliable messaging workflows.

How do I set up ActionMailer previews and templates for transactional emails?▼

Previews allow you to visually verify notification emails and attachment handling in development before enabling asynchronous delivery with deliver_later.

Does ActionMailer work with SolidQueue for background email processing?▼

This integration prevents email workflows from blocking web requests and supports reliable transactional email delivery.

Why does sending Rails email block user requests and how do I fix it?▼

You can fix this by configuring ActionMailer to use deliver_later with a SolidQueue-backed background job system, enabling asynchronous processing.

Can I handle attachments in ActionMailer with async delivery?▼

This allows transactional and notification emails to include attachments while maintaining non-blocking request handling across all environments.