%% You should probably cite rfc8997 instead of this I-D.
@techreport{ietf-uta-tls-for-email-00,
    number =    {draft-ietf-uta-tls-for-email-00},
    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-uta-tls-for-email/00/},
    author =    {Loganaden Velvindron and Stephen Farrell},
    title =     {{Use of TLS for Email Submission and Access}},
    pagetotal = 5,
    year =      2018,
    month =     nov,
    day =       26,
    abstract =  {This specification updates current recommendation for the use of Transport Layer Security (TLS) protocol to provide confidentiality of email between a Mail User Agent (MUA) and a Mail Submission Server or Mail Access Server. This document updates RFC8314.},
}