An engine that implements user and login handling instantly for an application. It uses the Devise gem to provide all facilities.

Prevail Health 3rd party mailer adapter gem.

Identity and access management engine for Rails.

Send a random image via email

Pigeons makes it a breeze to send your users lifecycle e-mails.

Pling Gateway to ActionMailer

Logs emails delivered for easy reference

Add Realtime to your application

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

Rails plugin for sending asynchronous email with ActionMailer and QueueClassic.

Asynchronous mail delivery using que

QuMailer is a Rails plugin for delivering email asynchronously from ActionMailer via the Qu queuing library.

QuMailer is a Ruby on Rails 3.x plugin for sending asynchronous emails with ActionMailer an Qu.

QwopClient is a client for publishing messages to an NSQ instance

A "Productized Rails Application" is a single generic application having a hierarchical structure wherein add-ons and tweaks for concurrent versions of the application are possible without affecting the core "generic" code base. You might use this, for example, if you want to maintain a common shopping cart code base that all of your clients use, while still providing flexibility for paid add-ons or site-specific needs.

This can be used by rake task as a simple report generation tool.

A RBS files generator for ActionMailer

Update prototype signature files by heuristic rules

Use Redis to store the Mail::Message when using in Rails

A Devise authentication extension for Refinery CMS