Postala 
Send email to multiple recipients from your Gmail account.
Installation
Tested with jruby-9.0.4.0. Requires the gmail gem. It is recommended to install the pre-release version of Shoes gem using gem install shoes --pre command. For now, you can then start the application by running shoes postala.rb in the console. I'm going to package the app in the future for multiple platforms. I'm waiting for Shoes to be ready. Please check it out and contribute if you like.
What should I do with this?
Start your new spam campaign!
Okay, I was joking — or not. You decide. 
Contributing
- Fork it ( https://github.com/krmbzds/postala/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request