Email::Delivery

Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file lib/email/delivery. To experiment with that code, run bin/console for an interactive prompt.

This gem is a service (Backend) that accepts the necessary information and sends emails. It provides an abstraction between two different e-mail service providers and quickly falls over to a working provider without affecting the users. It expects the credentials are set in the application the gem is imported.

Installation

Add this line to your application's Gemfile:

gem 'email-delivery'

And then execute:

$ bundle

Or install it yourself as:

$ gem install email-delivery

Inputs

Input: Hash
{
    'from':'me@test.com',
    'to':'you_1@test.com, you_2@test.com',
    'cc':'you_3@test.com',
    'bcc':['you_4@test.com', 'test_bcc2@mail.com'],
    'subject':'test subject',
    'text':'Hey testing now...'
}

Output: Hash
{
    'status': 0 || 4
    'message: 'success' || 'failure'
}

Usage

mail = Email::Delivery::Client.new do
  from     'me@test.com'
  to       'you@test.com'
  subject  'Test subject'
  body     'Hey testing now...'
end

mail.dispatch

Test

### Send email with one email address

    mail = Email::Delivery::Client.new do
          from     'me@test.com'
          to       'you@test.com'
          subject  'Test subject'
          body     'Hey testing now...'
        end
        
    output_hash = mail.dispatch
    {
      "message": "success", 
      "status": 0
    }

### send email with multiple emails,CC and BCC

     mail = Email::Delivery::Client.new do
              from     'me@test.com'
              to       'you@test.com', 'you_1@test.com'
              cc       'you_2@test.com'
              bcc      'you_3@test.com'
              subject  'Test subject'
              body     'Hey testing now...'
           end
              
     output_hash = mail.dispatch
     {
         "message": "success", 
         "status": 0
     }
 
### send email and receive error message
    mail = Email::Delivery::Client.new do
                  from     'me@test.com'
                  to       ''
                  cc       'BlahBlah'
                  bcc      'YoYo'
                  subject  'Test subject'
                  body     'Hey testing now...'
               end
                  
    output_hash = mail.dispatch
    
    {
      "message": "Error message returned from service provider", 
      "status": 2
    }

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Issues

Mailgun set-up issues with netregistry

Limitations

Mailgun is running with sandbox environment. So only Authorized receipients could receive email.
Service assumes any string which passes a email regex is a valid email.
Service handles only sending emails and won't inform about dropped messages or rejected messages.

Improvements

Message builder and formatter for the mail clients based on the input.
API Client exceptions based on api error codes with user friendly messages.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/elitenomad/email-delivery.

License

The gem is available as open source under the terms of the MIT License.