code: def SplitEmailsAndAppendEmailDomain(self, address_list):
      
      result = []
      # Process email addresses, and build up a list.
      if isinstance(address_list, rdf_standard.DomainEmailAddress):
        address_list = [str(address_list)]
      elif isinstance(address_list, string_types):
        address_list = [address for address in address_list.split(",") if address]
      for address in address_list:
        result.append(self.AddEmailDomain(address))
      return result
docs: Splits a string of comma-separated emails, appending default domain.