PrettyMailer

Apply stylesheets to your rails mailers. PrettyMailer uses sprockets to find and parse your stylesheets, which it then applies inline to the emails HTML part. It takes css selector specificity into account, so your styles are applied as they would be with a modern web browser, taking the proper order of precedence.

Add this line to your application's Gemfile:

gem 'pretty_mailer'

And then execute:

$ bundle

Or install it yourself as:

$ gem install pretty_mailer

class ExampleMailer < ActionMailer::Base
  include PrettyMailer # include the module in your mailer
  
  # you can specify a default style for the whole mailer
  default css: 'email.css'
  # or, you can optionally pass a whole array of stylesheets
  default css: ['email.css', 'other_styles.css']
  
  def foomail
    # you can also specify stylesheets per email
    mail({
      to: 'some@one.com',
      from: 'another@guy.com',
      subject: 'Pretty mailer is awesome',
      css: 'awesome.css' # array syntax works here too [ 'one.css', 'two.css', ... ]
    })
  end
end

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

Copyright (C) 2013 Adam Ross Cohen

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.