%% You should probably cite rfc2487 instead of this I-D.
@techreport{hoffman-smtp-ssl-10,
    number =    {draft-hoffman-smtp-ssl-10},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-hoffman-smtp-ssl/10/},
    author =    {Paul E. Hoffman},
    title =     {{SMTP Service Extension for Secure SMTP over TLS}},
    pagetotal = 8,
    year =      1998,
    month =     nov,
    day =       9,
    abstract =  {This document describes an extension to the SMTP service that allows an SMTP server and client to use transport-layer security to provide private, authenticated communication over the Internet. This gives SMTP agents the ability to protect some or all of their communications from eavesdroppers and attackers. {[}STANDARDS-TRACK{]}},
}