What is the difference between deliver_now and deliver_later?

deliver_now sends the email immediately in the current process, which can slow down web requests. deliver_later pushes the email to a background queue for processing, which is the recommended approach for better performance.

How do I send emails asynchronously in Rails?

Use the .deliver_later method on your mailer action. This enqueues the email as a background job using Active Job, preventing your application from blocking while waiting for the mail server.

How do I handle multiple recipients in Action Mailer?

The 'to', 'cc', and 'bcc' fields in the mail method can accept either a single email string or an array of email strings for multiple recipients.

Can I preview emails during development without sending them?

Yes, Action Mailer includes a Preview feature. By creating a preview class in test/mailers/previews, you can view the rendered HTML and text versions of your emails in your browser at localhost:3000/rails/mailers.

Action Mailer for Ruby on Rails

Name: Action Mailer for Ruby on Rails
Author: bastos

bybastos

Marketing Automation

Streamlines the creation, configuration, and delivery of transactional and marketing emails in Ruby on Rails applications.

About

Action Mailer for Ruby on Rails provides a comprehensive suite of tools for managing email workflows, from generating mailers and crafting multi-part templates to configuring SMTP providers. This skill guides developers through implementing best practices such as asynchronous delivery via Active Job, handling file and inline attachments, and setting up email previews in development. It also covers advanced patterns like interceptors for environment-specific routing and observers for delivery logging, ensuring a robust and testable email architecture.

Key Features

Testing utilities for verifying email delivery and content in Minitest
Built-in support for file attachments and inline asset embedding
Seamless integration with Active Job for background email delivery
0 GitHub stars
Pre-configured SMTP settings for major providers like SendGrid and Mailgun
Standardized mailer generation and multi-format template management

Use Cases

Automating the delivery of scheduled reports and data exports with PDF or CSV attachments
Implementing transactional emails for user authentication, such as welcome messages and password resets
Creating staging environment sandboxes using interceptors to prevent accidental emails to real users

About

Key Features

Testing utilities for verifying email delivery and content in Minitest
Built-in support for file attachments and inline asset embedding
Seamless integration with Active Job for background email delivery
0 GitHub stars
Pre-configured SMTP settings for major providers like SendGrid and Mailgun
Standardized mailer generation and multi-format template management

Use Cases

Automating the delivery of scheduled reports and data exports with PDF or CSV attachments
Implementing transactional emails for user authentication, such as welcome messages and password resets
Creating staging environment sandboxes using interceptors to prevent accidental emails to real users