%% You should probably cite rfc8904 instead of this I-D.
@techreport{vesely-authmethod-dnswl-12,
    number =    {draft-vesely-authmethod-dnswl-12},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-vesely-authmethod-dnswl/12/},
    author =    {Alessandro Vesely},
    title =     {{DNSWL Email Authentication Method Extension}},
    pagetotal = 12,
    year =      2019,
    month =     nov,
    day =       16,
    abstract =  {This document describes an additional Email Authentication Method compliant with RFC 8601. The method consists in looking up the sender's IP address in a DNS whitelist. This document is provided for information in case the method is seen in the field, as well as to suggest a useful practice and register the relevant keywords. This document does not consider black lists.},
}