%% You should probably cite rfc3685 instead of this I-D.
@techreport{daboo-sieve-spamtest-04,
    number =    {draft-daboo-sieve-spamtest-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-daboo-sieve-spamtest/04/},
    author =    {Cyrus Daboo},
    title =     {{SIEVE Email Filtering: Spamtest and VirusTest Extensions}},
    pagetotal = 9,
    year =      2003,
    month =     oct,
    day =       21,
    abstract =  {The SIEVE mail filtering language "spamtest" and "virustest" extensions permit users to use simple, portable commands for spam and virus tests on email messages. Each extension provides a new test using matches against numeric 'scores'. It is the responsibility of the underlying SIEVE implementation to do the actual checks that result in values returned by the tests. {[}PROPOSED STANDARD{]}},
}