%% You should probably cite rfc8601 instead of this I-D.
@techreport{ietf-dmarc-rfc7601bis-03,
    number =    {draft-ietf-dmarc-rfc7601bis-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-dmarc-rfc7601bis/03/},
    author =    {Murray Kucherawy},
    title =     {{Message Header Field for Indicating Message Authentication Status}},
    pagetotal = 48,
    year =      2018,
    month =     aug,
    day =       22,
    abstract =  {This document specifies a message header field called Authentication- Results for use with electronic mail messages to indicate the results of message authentication efforts. Any receiver-side software, such as mail filters or Mail User Agents (MUAs), can use this header field to relay that information in a convenient and meaningful way to users or to make sorting and filtering decisions.},
}