In order for Fae's password reset email function to work you need to make sure you application can send mail and set a default url option for ActionMailer in each config/environments/*env.rb
file.
Rails.application.configure do
# development.rb
config.action_mailer.default_url_options = { host: 'localhost:3000' }
# remote_development.rb
config.action_mailer.default_url_options = { host: 'dev.yoursite.com' }
# stage.rb
config.action_mailer.default_url_options = { host: 'stage.yoursite.com' }
# production.rb
config.action_mailer.default_url_options = { host: 'yoursite.com' }
end
Be sure to update this each time your domain or subdomain changes.