%% You should probably cite draft-storey-smtp-client-id-16 instead of this revision.
@techreport{storey-smtp-client-id-03,
    number =    {draft-storey-smtp-client-id-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-storey-smtp-client-id/03/},
    author =    {William Storey},
    title =     {{SMTP Service Extension for Client Identity}},
    pagetotal = 12,
    year =      2017,
    month =     feb,
    day =       2,
    abstract =  {This document defines an extension for the Simple Mail Transfer Protocol (SMTP) called "CID" to provide a method for clients to indicate an identity to the server. This identity is an additional token that may be used for security and/or informational purposes, and with it a server may optionally apply heuristics using this token.},
}