%% You should probably cite rfc5490 instead of this I-D.
@techreport{melnikov-sieve-imapext-metadata-08,
    number =    {draft-melnikov-sieve-imapext-metadata-08},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-melnikov-sieve-imapext-metadata/08/},
    author =    {Alexey Melnikov},
    title =     {{The Sieve Mail-Filtering Language -- Extensions for Checking Mailbox Status and Accessing Mailbox Metadata}},
    pagetotal = 8,
    year =      2008,
    month =     dec,
    day =       16,
    abstract =  {This memo defines an extension to the Sieve mail filtering language (RFC 5228) for accessing mailbox and server annotations, checking for mailbox existence, and controlling mailbox creation on "fileinto" action. {[}STANDARDS-TRACK{]}},
}