@techreport{ietf-msgtrk-protocol-00,
    number =    {draft-ietf-msgtrk-protocol-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-ietf-msgtrk-protocol/00/},
    author =    {Eric P. Allman and Tony Hansen},
    title =     {{SMTP Service Extension for Message Tracking}},
    pagetotal = 9,
    year =      2000,
    month =     mar,
    day =       16,
    abstract =  {The Message Tracking Models and Requirements document {[}RFC-TRACK- MODEL{]} discusses the models that message tracking solutions could fol- low, along with requirements for a message tracking solution that can be used with the Internet-wide message infrastructure. This memo defines an extension to the SMTP service that provides a message tracking solu- tion that satisfies those requirements. Using the model document's ter- minology, it uses active enabling and active requests with request referrals.},
}