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Grunt Email Boilerplate

A grunt-ready HTML email template based on HTML Email Boilerplate.

MAINTAINERS WANTED: I'm no longer maintaining this project. Feel free to drop me a line if you're interested in keeping up the development



  • Node.js >= 0.10.20 (install wiki)
  • Grunt-cli >= 0.1.7 and Grunt >=0.4.2 (npm install grunt-cli -g)
  • Ruby >= 1.9.3 (installers)
  • Compass >= 0.12.2 (gem install compass)
  • Premailer >= 1.8.0 (gem install premailer and, most of the time, gem install hpricot)

Getting Started

To install the boilerplate

  1. install all dependencies

  2. clone this git repo

    git clone git://

  3. install node dependencies:

    cd grunt-email-boilerplate

    npm install

  4. Run the development task grunt dev and start editing email files in src folder (by default email.html and scss/_main.scss). By default, Grunt will try to open the email preview in your default browser; alternatively, preview URL is http://localhost:8000/.

0.2 to 0.3 Changes

Version 0.3 introduces several changes to included plugins, tasks and folders' structure:

  • System changes
    • Boilerplate now requires Node.js >= 0.10.20, Ruby >= 1.9.3, Premailer >= 1.8.0 and Grunt >=0.4.2
  • Files and folder changes
    • data folder moved into src
    • intermediate files (as are now stored in a temporary folder (tmp by default)
    • build folder dist is no more suffixed with current date
  • Tasks and configuration changes
    • Updated all tasks to latest versions
    • Removed distDomain and devDomain paths in favor of dedicated hosts configuration object
    • Removed paths.images configuration
    • Boilerplate now allows multiple email files ( === '*.html')
    • Removed grunt-devcode in favor of grunt-preprocess
    • Using grunt-contrib-compass watch option instead of a watch sub-task.
    • Enabled livereload feature
    • send task only allows testing on development environment. Transitory solution while looking for better integration with production environments.



This boilerplate comes with a customized version of the HTML Email Boilerplate.

Sources are located in the src folder:

  • email.html: HTML boilerplate
  • scss/: SCSS folder
    • _variables.scss: boilerplate style variables
    • _mixins.scss: mixins and premailer attributes helpers
    • _base.scss: common styles
    • _media-queries.scss: optional media queries for responsive emails
    • _main.scss: your email style
    • style.scss: glue stylesheet, don't edit it directly
  • images: source images of your email
  • inc: optional partials files (requires a render task to be set)
  • data: optional JSON files with variables (requires a render task to be set)

Default Tasks

The boilerplate comes with some predefined tasks to cover average email development needs.

dev Tasks

This tasks runs a watch trigger for changes to sources inside the src folder and starts a static HTTP server at http://localhost:8000 pointing to the tmp folder where processed resources are store.

NOTE: This tasks doesn't apply any style inlining.

dist Tasks

This tasks creates a build from your sources. It creates a folder named dist next to src, then compiles your SCSSes and inlines the resulting stylesheet in the HTML source through Premailer. By default, Premailer outputs a text version too.

Images are optimized with jpegtran and OptiPNG.

send Tasks (was test before v0.2.3)

Extends dev by sending the compiled email to any configured recipient.

Tasks Customization

See Gruntfile.js source for more options and customizations.

Tips and Tricks

  1. Connecting from a machine other than localhost

By default tasks refer to http://localhost:8000 as the test URL, anyway you may connect to the test server by pointing to its IP (e.g.: or to any other registered alias.


In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using grunt.

Release History

- Packages and docs updates.

- Updated plugins and workflow. See section 0.2 to 0.3 Changes for details.

- updated grunt-premailer to v0.2.0.

- bugfixes and updates, send task moved to external grunt plugin, premailer task moved to external grunt plugin. send task renamed to nodemailer, test renamed to send as in generator-htmlemail.

- better test handling. Updated dependencies.

- render task moved to external grunt plugin.

- ejs templates are now statically rendered in development stage by the watch task. Added open and devcode tasks. Fixed some issues with the imagemin task.

- compatibility with grunt 0.4+ and contrib plugins

- removed a couple of unneeded deps. Optimized server and render tasks

- Added support for ejs templating

- Debugging and polishing

- Initial release


Copyright (c) 2012-2013 Marco Solazzi Licensed under the MIT license.


A Grunt template to create emails




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