Gmail settings for RoR

ror_mail_settings.rb

# In application config file:
config.action_mailer.smtp_settings = {
  address:              'smtp.gmail.com',
  port:                 587,
  domain:               'gmail.com',
  user_name:            '[email protected]',
  password:             'yourpassword',
  authentication:       :plain,
  enable_starttls_auto: true
}