devise

https://github.com/plataformatec/devise

Ruby

Flexible authentication solution for Rails with Warden.

Mail::Message#encoded

Outputs an encoded string representation of the mail message including
all headers, attachments, etc.  This is an encoded email in US-ASCII,
so it is able to be directly sent to an email server.

Source | Google | Stack overflow

Edit

git clone [email protected]:plataformatec/devise.git
cd devise
open

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Mail--Message-encoded-for-pr

# Commit to git

git add git commit -m "better docs for Mail::Message#encoded"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Mail--Message-encoded-for-pr

hub pull-request

# Celebrate!