%% You should probably cite draft-ietf-emailcore-rfc5321bis-27 instead of this revision.
@techreport{ietf-emailcore-rfc5321bis-07,
    number =    {draft-ietf-emailcore-rfc5321bis-07},
    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-emailcore-rfc5321bis/07/},
    author =    {Dr. John C. Klensin},
    title =     {{Simple Mail Transfer Protocol}},
    pagetotal = 120,
    year =      2021,
    month =     dec,
    day =       4,
    abstract =  {This document is a specification of the basic protocol for Internet electronic mail transport. It consolidates, updates, and clarifies several previous documents, making all or parts of most of them obsolete. It covers the SMTP extension mechanisms and best practices for the contemporary Internet, but does not provide details about particular extensions. The document also provides information about use of SMTP for other than strict mail transport and delivery. This document replaces RFC 5321, the earlier version with the same title. // JcK 20211029 Note in Draft: Adjusted in version -06. Decided the // details belong in either the Introduction or the A/S, not the // Abstract. And it makes the Abstract a tad shorter, which is good.},
}