Plugin for sending asynchronous email with Backburner

When the object or arg to a delayed_job is a Mongoid document, store only a small stub of the object instead of the full serialization.

Devise Google Authenticator Extension, for adding Google's OTP to your Rails apps!

Create web applications using Dojo Toolkit (1.8) and Ruby on Rails 3

An adapter for using Elastic Email with Rails and Action Mailer

Feedbacker provides a pull out tab on the side of every page on a site for users to send feedback to the site.

This gem add google analytics campaign tags to every link in your action mailer

Rack handler for monitoring several parts of a web application so one request can determine which system or dependencies are down.

This gem helps you to track key indicators in your Rails app.

Combines Liquid and Markdown templating for safe customer-editable pages and emails. Also supports templates from the database

Litmus Mailer adds an ActionMailer observer to update your Litmus tests each time an email is delivered from development.

Mailbag keeps track of the emails that your application sends out by logging them to a database table

The MailPace Rails Gem is a plug in for ActionMailer to send emails via MailPace to make sending emails from Rails apps super simple.

Manage your organization's workflows entirely through Google Docs and irb. Mobilize schedules jobs, queues workers, sends failure notifications, and integrates mobilize-hadoop, -http, -mysql, and -mongodb packages to allow seamless transport of TSV and JSON data between any two endpoints.

Rails Template Engine for MJML (Rust-variant called MRML)

extend actionmailer to allow one smtp account per mailer class

A multi-branch Continuous Integration server that integrates with GitHub

The OhMySMTP Rails Gem is a plug in for ActionMailer to send emails via OhMySMTP to make sending emails from Rails apps super simple.

This gem brings you the power of the premailer gem to Rails without any configuration needs. Create HTML emails, include a CSS file as you do in a normal HTML document and premailer will inline the included CSS. Forked and revived from the work of fphilipe.

Presenter helps you expose view models to your views with a declarative approach.