%% You should probably cite rfc2920 instead of this I-D.
@techreport{freed-smtp-pipe-01,
    number =    {draft-freed-smtp-pipe-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-pipe/01/},
    author =    {Ned Freed},
    title =     {{SMTP Service Extension for Command Pipelining}},
    pagetotal = 9,
    year =      2000,
    month =     mar,
    day =       7,
    abstract =  {This memo defines an extension to the Simple Mail Transfer Protocol (SMTP) service whereby a server can indicate the extent of its ability to accept multiple commands in a single Transmission Control Protocol (TCP) send operation. {[}STANDARDS-TRACK{]}},
}