%% You should probably cite rfc1664 instead of this I-D. @techreport{ietf-x400ops-dnsx400maps-05, number = {draft-ietf-x400ops-dnsx400maps-05}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-x400ops-dnsx400maps/05/}, author = {Claudio Allocchio and Antonio B. Bonito and Bruce A. Cole and Silvia Giordano and Robert Hagens}, title = {{Using the Internet DNS to Distribute RFC1327 Mail Address Mapping Tables}}, pagetotal = 23, year = 1994, month = apr, day = 18, abstract = {This memo defines how to store in the Internet Domain Name System the mapping information needed by e-mail gateways and other tools to map RFC822 domain names into X.400 O/R names and vice versa. This memo defines an Experimental Protocol for the Internet community.}, }