orbit-4-2/app/mailer/user_mailer.rb

class UserMailer < Devise::Mailer

 	# default :from => "noreply@rulingcom.com"

	@site = Site.first

	@smtp_settings = {
	  :address => @site['site_settings']['address'],
	  :port => @site['site_settings']['port'],
	  :domain => @site['site_settings']['domain'],
	  :authentication => @site['site_settings']['authentication'],
	  :enable_starttls_auto => @site['site_settings']['enable_starttls_auto']
	}

	if !@site['site_settings']['user_name'].blank? 
	  @smtp_settings[:user_name] = @site['site_settings']['user_name']
	end

	if !@site['site_settings']['password'].blank? 
	  @smtp_settings[:password] = @site['site_settings']['password']
	end 

	if !@site['site_settings']['service_email'].blank? 
	  @smtp_settings[:from] = @site['site_settings']['service_email']
      Devise.mailer_sender = @site['site_settings']['service_email']
	end 

	if !@site['site_settings']['reply_email'].blank? 
	  @smtp_settings[:reply_to] = @site['site_settings']['reply_email']
	end 


	ActionMailer::Base.smtp_settings = @smtp_settings

end