%% You should probably cite rfc4405 instead of this I-D.
@techreport{katz-submitter-01,
    number =    {draft-katz-submitter-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-katz-submitter/01/},
    author =    {Harry Katz and Eric P. Allman},
    title =     {{SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail Message}},
    pagetotal = 14,
    year =      2005,
    month =     may,
    day =       19,
    abstract =  {This memo defines an extension to the Simple Mail Transfer Protocol (SMTP) service that allows an SMTP client to specify the responsible submitter of an e-mail message. The responsible submitter is the e-mail address of the entity most recently responsible for introducing a message into the transport stream. This extension helps receiving e-mail servers efficiently determine whether the SMTP client is authorized to transmit mail on behalf of the responsible submitter's domain. This memo defines an Experimental Protocol for the Internet community.},
}