![]() ![]() Some email clients (ex: Gmail) do not properly deal with long lines in emails, mostly because of the RFC-2822 - Internet Message Format (see 2.1.1 - Line Length Limits) specification. MJML tends to generate HTML with very long lines (longer than 998 characters) without any line breaks. Because there is no such variable, the output is simply empty. If your emails are going to be rendered by your application with dynamic contents, make sure you properly escape your dynamic content placeholders if your app's templating language uses similar tags as Nunjucks.įor example, if you are going to render your final emails using Django's templating language, the placeholder with a variable from its context. The replacement process is setup to work on for all files under src/templates/html and src/templates/text. You would include that translated string in your source files as such: _() To use translated strings in emails, use the following delimiter: _(messages.), where is the dot-delimited path that leads to the string you want in messages.yaml.įor example, given a messages.yaml file under src/locales/en with the following contents: footer: The messages.yaml files is a simple hierarchical data structure that maps keys to the actual value in a specific language. The output of the tool is a different version of each email in both HTML and text version, in all languages that have a corresponding messages.yaml file under the src/locales/ directory. When building templates for production (see Building for production below), the $IMGBASE$ variables will be replaced by the imageBase configuration attribute in config.js. Those files should then be uploaded/synced to a Web server serving static files. ![]() All the tool does is repatriate every image file under the src/assets directory into the output/assets directory when building the project. It is not part of the scope of this tool to sync or upload images to a public hosting environment. Note: Usage of the $IMGBASE$ pattern is not required if your images are already on a public server. This would refer to an image stored in the following directory: src/assets/logo.gif. For that process to work, the $IMGPATH$ replacement pattern needs to be prepended to all references to images in any of the. This tool does not embed images into emails.Īs a convenience for developers when working locally (more specifically using the development environment), the image paths will be adjusted so that they point to the local file instead of a fully absolute URL. Images in emails are expected to be hosted on a public web server (ex: S3). imageBase: The absolute URL where images are to be accessible publicly.Example: $ gulp build -env production -out /path/to/your/output/dir/ ConfigurationĪ config.js file exists to provide configuration parameters for the build. out: Replaces the default output directory (. Building for productionĪll files are bundled in the output directory and images from src/assets will be copied in the output/assets directory Then hit to see a listing of all the output files.Īny file can be open in the browser and every HTML file will be reloaded as you make changes in sources. DEVELOPING MJML INSTALLPreparing your machine: $ npm install gulp -g # if neededīuild and start a LiveReload-enabled server for local development: $ gulp Composition/reuse with template inheritance via Nunjucks templatesĬonsider using nvm to manage multiple Node versions on your system.LiveReload to see changes to HTML emails in near realtime in the browser.Support for both HTML and text versions of your emails (with complete control over the text version).Your application could load the files and send them via SMTP, or you could use the output directly in a marketing email tool such as Mailchimp, Campaign Monitor, etc. The actual use of the output files is out of this tool's scope. The output of the tool is a set files for each variant (HTML/text) and language. The tool lets developers author emails in both HTML and plain text versions that will be compatible with many email clients, thanks to the use of the MJML library. This is a streamlined environment for developing multilingual, multipart emails with focus on DRY and developer productivity. ![]()
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