devise

https://github.com/plataformatec/devise

Ruby

Flexible authentication solution for Rails with Warden.

Mail::Message#raise_delivery_errors=

If set to false, mail will silently catch and ignore any exceptions
raised through attempting to deliver an email.

This setting is ignored by mail (though still available as a flag) if you
define a delivery_handler

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-raise_delivery_errors--for-pr

# Commit to git

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

# 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-raise_delivery_errors--for-pr

hub pull-request

# Celebrate!