%% You should probably cite rfc1893 instead of this I-D.
@techreport{ietf-notary-status-03,
    number =    {draft-ietf-notary-status-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-notary-status/03/},
    author =    {Gregory Vaudreuil},
    title =     {{Enhanced Mail System Status Codes}},
    pagetotal = 15,
    year =      1995,
    month =     may,
    day =       5,
    abstract =  {There currently is not a standard mechanism for the reporting of mail system errors except for the limited set offered by SMTP and the system specific text descriptions sent in mail messages. There is a pressing need for a rich machine readable status code for use in delivery status notifications {[}DSN{]}. This document proposes a new set of status codes for this purpose. {[}STANDARDS-TRACK{]}},
}