%% You should probably cite rfc6152 instead of this I-D. @techreport{ietf-yam-rfc1652bis-03, number = {draft-ietf-yam-rfc1652bis-03}, 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-yam-rfc1652bis/03/}, author = {Dave Crocker and Dr. John C. Klensin and Dr. Marshall T. Rose and Ned Freed}, title = {{SMTP Service Extension for 8-bit MIME Transport}}, pagetotal = 7, year = 2010, month = feb, day = 19, abstract = {This memo defines an extension to the SMTP service whereby an SMTP content body consisting of text containing octets outside of the US-ASCII octet range (hex 00-7F) may be relayed using SMTP. {[}STANDARDS-TRACK{]}}, }