email - rails 4 action mailer setting (SMTP) for webmail -

I have a problem here, I can not find any SMTP settings for webmail, I just and always Gmail Looking for the settings, like

  # ActionMailer settings config.action_mailer.perform_deliveries = true config.action_mailer.raise_delivery_errors = true config.action_mailer.delivery_method =: smtp config.action_mailer .smtp_settings = {address : 'Smtp.gmail.com', Port: 587, Domain: 'gmail.com', user_name: '*****@gmail.com', Password: '******', authentication: 'Plain ', Enable_starttls_auto: true}  

Nobody knows that it's Web for Webmail

Try this code

  Domains: 'Smtp.gmail.com',