@techreport{otis-dkim-options-00,
    number =    {draft-otis-dkim-options-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-otis-dkim-options/00/},
    author =    {Douglas Otis},
    title =     {{Extended Options for DomainKeys Identified Mail (DKIM)}},
    pagetotal = 13,
    year =      2005,
    month =     dec,
    day =       27,
    abstract =  {This document describes options that extend protections offered by DKIM. These options include Binding-Advice \& Role-Assertion, Opaque- Identifier, and an In-Channel check. The Binding-Advice \& Role- Assertion offers guidance in isolating the source of a message, in addition to establishing message signature expectations. The Opaque- Identifier (O-ID) offers protection from replay abuse and intra- domain spoofing, even when email-addresses are not associated with the signing-domain. The In-Channel check provides a means to mitigate DNS lookups for avoiding possible message replay abuse.},
}