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Making HTML emails a little less painful. Writes css inline and corrects image urls.

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MailStyle

MailStyle tries to make sending HTML emails a little less painful.

For a more in depth introduction check out the Blog Post

It was developed for use on Purify: Awesome Bug & Issue Tracking

Install

First install the dependencies:

sudo gem install nokogiri css_parser

Then install MailStyle to your rails app, either as a plugin:

script/plugin install http://github.com/purify/mail_style

Or you can install the gem:

# Install gemcutter if you haven't already
sudo gem install gemcutter
sudo gem tumble

# Install MailStyle
sudo gem install mail_style

Then in your environment.rb file add:

config.gem "mail_style"

Usage

Simply add the css method to your deliver actions:

class Notifier < ActionMailer::Base
  def welcome_email
    css :email

    subject 'Welcome Aboard'
    recipients 'someone@example.com'
    from 'jimneath@googlemail.com'
    sent_on Time.now
  end

  def newsletter_email
    css [:email,:newsletter]

    subject 'Newsletter'
    recipients 'someone@example.com'
    from 'jimneath@googlemail.com'
    sent_on Time.now
  end
end

This will look for a css file called email.css in your public/stylesheets folder. The css method can take either a string or a symbol. You can also pass the css file name with or without the .css extension.

Styles in the email’s HEAD

By default, <style> elements in the email document’s <head> are processed and removed from the <head>.

Style elements with media="print" are ignored.

You can set a special data-immutable="true" attribute on <style> tags you do not want to be processed and removed from the document’s <head>.

Image URL Correcting

If you have default_url_options[:host] set in your mailer, then MailStyle will do it’s best to make the urls of images absolute.

In your mailer

ActionMailer::Base.default_url_options[:host] = "example.com"

Features

  • Write CSS styles inline
  • Corrects image urls
  • SASS Support

Bugs / Todo

  • Improve overall performance
  • Add support for less
  • Allow users to swap between css_parser and csspool

Contributors

License

(The MIT License)

Copyright © 2009-2010

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.

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