Maildis is a command line bulk email dispatching tool. It supports HTML and plain text templates and CSVs for recipients and merge fields.
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README.md

Maildis

Code Climate Dependency Status

Maildis is a command line bulk email dispatching tool. It supports HTML and plain text templates with merge tags and CSVs for specifying recipients. It relies on SMTP information you provide through your own configuration file. Subject, sender, path to CSV and path to the templates are all configurable through YAML.

Installation

$ gem install maildis

Usage

Maildis Commands:

maildis dispatch mailer  # Dispatches the mailer through the SMTP server specified in the mailer configuration.
maildis ping mailer      # Attempts to connect to the SMTP server specified in the mailer configuration
maildis validate mailer  # Validates mailer configuration file

In the above task listing, mailer refers to a YAML configuration file for your mailer. You may get additional help on any of the available tasks, for example:

$ maildis help dispath

Usage:
  maildis ping mailer

Options:
  -v, [--verbose=VERBOSE]  # Verbose

Creating and Dispatching Mailers

1. Create a mailer configuration (e.g. mailer.yml)

mailer:
  subject: "Test Mailer"
  sender:
    name: "Developer"
    email: "developer@company.com"
  recipients:
    csv: "/path/to/recipients.csv"
  templates:
    html: "/path/to/template.html"
    plain: "/path/to/template.txt"
smtp:
  host: "my.mail.host"
  port: 25
  username: "username"
  password: "password"

2. Set up html and plain text templates, for example:

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
  <head>
    <title>Test Mailer</title>
  </head>
  <body>
    <p>This is a test mailer</p>
    <p>The following merge field should be replaced with an actual URL: <a href="%url%">%url%</a></p>
    <p>Organization | Address | Unsubscribe Link</p>
  </body>
</html>

Plain

This is a test mailer.

The following merge field should be replaced with an actual URL: %url%

Organization | Address | Unsubscribe Link

Note the %url% markers in the template files. This %{string}% mechanism allows you to specify merge fields which are replaced by their equivalent columns from your recipients CSV. In this case, the CSV example below, lists a url column that will be used as a merge field.

3. Prepare your recipients CSV, for example:

name,email,url
Johnny Boursiquot,jboursiquot@gmail.com,https://github.com/jboursiquot
Johnny Boursiquot,jboursiquot@maark.com,http://www.maark.com

4. Validate your configuration

$ maildis validate /path/to/your/mailer.yml

This will go through the settings in your mailer configuration and check

  • sender email validity
  • template path validity
  • recipients CSV path and format validity
  • SMTP server reachability

You can test the reachability of the SMTP server defined in your mailer configuration on its own by issueing the following command:

$ maildis ping /path/to/your/mailer.yml

5. Invoke the maildis command while passing in the path to your

mailer configuration to its dispatch task

$ maildis dispath /path/to/your/mailer.yml -v

When maildis processes your dispatch request, a logfile (.maildis.log) is written in the user's home directory. In the above command, the dispatch task is invoked with the verbose flag which will output to STDOUT as well as ~/.maildis.log. Example output based on the recipients.csv above might look like this:

2012-12-11 20:18:10 -0500 INFO: Load /path/to/your/mailer.yml
2012-12-11 20:18:10 -0500 INFO: Validate configuration
2012-12-11 20:18:10 -0500 INFO: Validate recipients csv
2012-12-11 20:18:10 -0500 INFO: Extract recipients from csv
2012-12-11 20:18:10 -0500 INFO: Validate sender
2012-12-11 20:18:10 -0500 INFO: Validate templates
2012-12-11 20:18:10 -0500 INFO: Validate SMTP server localhost
2012-12-11 20:18:10 -0500 INFO: Dispatching to 2 recipients
2012-12-11 20:18:10 -0500 INFO: Sent: Johnny Boursiquot <jboursiquot@gmail.com>
2012-12-11 20:18:10 -0500 INFO: Sent: Johnny Boursiquot <jboursiquot@maark.com>
2012-12-11 20:18:11 -0500 INFO: Dispatch complete without errors

Local SMTP Server For Testing

I recommend you use the mailcatcher gem to get a local SMTP server up and running while you test. This will speed up your testing and even require network access. See http://mailcatcher.me for more details.

Contributing

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