send automatically all emails via delayed_job

Rails is a framework for building web-application using CGI, FCGI, mod_ruby, or WEBrick on top of either MySQL, PostgreSQL, SQLite, DB2, SQL Server, or Oracle with eRuby- or Builder-based templates.

Blacklist particular email addresses so ActionMailer doesn't deliver emails to them.

Generate email documentation from your mailer-specs.

Integration testing with e-mail examples.

Ruby library for the Emailfuse API including an Rails Action Mailer adapter

A simple email logger.

Email Sanitizer lets you avoid accidentally sending out emails to your customers from staging, demo or other non-production environments

Expressive email assertions that let you succinctly describe when emails should and should not be sent

EmailTestHelpers are a collection of lightweight helpers designed for acceptance tests. They add ability to find emails and click links in them.

Asynchronous mail client and server written in ruby, eventmachine to replace synchronous mail implementation in Rails 2 and 3

An easy smtp eventmachine wrapper for activemailer.

Enhanced Rails is a framework for building web-application template and javascript agnostic on top of either MySQL, PostgreSQL, SQLite, DB2, SQL Server, or Oracle with eRuby- or Builder-based templates.

Exception notification for Rails apps(+ More Info!)

Exchange journalling wraps emails as a MIME attachment of a journal message. This extracts the original message our of a journal message

Using Action Mailer, gem sends all tasks from Fat Free CRM to your Wunderlist account.

Use this plugin in your rails applications to send emails through the Postmark API

Send ActionMailer messages with the Flowmailer API

Braindead-simple email logger for ActionMailer using ActiveRecord

Gmail markup in rails