%% You should probably cite draft-ietf-imapapnd-appendlimit-extension instead of this I-D.
@techreport{jayantheesh-imap-appendlimit-extension-04,
    number =    {draft-jayantheesh-imap-appendlimit-extension-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-jayantheesh-imap-appendlimit-extension/04/},
    author =    {Narendra Singh Bisht},
    title =     {{The IMAP APPENDLIMIT Extension}},
    pagetotal = 7,
    year =      2015,
    month =     feb,
    day =       27,
    abstract =  {This memo defines an extension to the IMAP service whereby a server can advertise its capability, to support maximum mail upload size using CAPABILITY, SELECT/EXAMINE and LIST command.},
}