def validate_email_addresses
      bad_emails = []
      bad_lpars = []
      collect_lpars.each do |lpar|
        lpar.contact_list.to_s.split(',').each do |contact|
          contact = contact.strip
          if contact.include?('@')
            if ValidatesEmailFormatOf::validate_email_format(contact)
              bad_emails << contact
              bad_lpars << lpar
            end
          end
         end
      end

      unless bad_emails.empty?
        errors.add("The", " following recipients are not valid: #{bad_emails.join(',')}\n from VM #{bad_lpars}")
      end
  end