%% You should probably cite rfc1894 instead of this I-D.
@techreport{ietf-notary-mime-delivery-06,
    number =    {draft-ietf-notary-mime-delivery-06},
    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-mime-delivery/06/},
    author =    {Gregory Vaudreuil and Keith Moore},
    title =     {{An Extensible Message Format for Delivery Status Notifications}},
    pagetotal = 39,
    year =      1995,
    month =     jun,
    day =       21,
    abstract =  {This memo defines a MIME content-type that may be used by a message transfer agent (MTA) or electronic mail gateway to report the result of an attempt to deliver a message to one or more recipients. {[}STANDARDS-TRACK{]}},
}