postal/app/jobs/check_all_dns_job.rb

class CheckAllDNSJob < Postal::Job
  def perform
    Domain.where.not(:dns_checked_at => nil).where("dns_checked_at <= ?", 1.hour.ago).each do |domain|
      log "Checking DNS for domain: #{domain.name}"
      domain.check_dns(:auto)
    end

    TrackDomain.where("dns_checked_at IS NULL OR dns_checked_at <= ?", 1.hour.ago).includes(:domain).each do |domain|
      log "Checking DNS for track domain: #{domain.full_name}"
      domain.check_dns
    end
  end
end