%% You should probably cite rfc9422 instead of this I-D.
@techreport{freed-smtp-limits-01,
    number =    {draft-freed-smtp-limits-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-freed-smtp-limits/01/},
    author =    {Ned Freed},
    title =     {{The LIMITS SMTP Service Extension}},
    pagetotal = 8,
    year =      ,
    month =     ,
    day =       ,
    abstract =  {This document defines a "Limits" extension for the Simple Mail Transfer Protocol (SMTP) and an associated limit registry. This extension provides the means for an SMTP server to inform the SMTP client of limits the server intends to apply to the protocol during the current SMTP session. The client is then able adapt its behavior in order to conform to those limits.},
}