This command line tool helps you send newsletters.

Install it first:

$ gem install rumble

Run it locally and read its output:

$ rumble --help

Simple liquid letter looks like this:

{{ first }},

How are you?

Best,
Yegor

The list of emails must contain three columns separated by a comma: first name, last name, and email.

If you want to send via HTTP/SMTP proxy, use --proxy=socks:<host>:<port>.

Read these guidelines. Make sure you build is green before you contribute your pull request. You will need to have Ruby 2.3+ and Bundler installed. Then:

$ bundle update
$ bundle exec rake

If it's clean and you don't see any error messages, submit your pull request.