%% You should probably cite rfc9057 instead of this I-D.
@techreport{crocker-email-author-02,
    number =    {draft-crocker-email-author-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-crocker-email-author/02/},
    author =    {Dave Crocker},
    title =     {{Email Author Header Field}},
    pagetotal = 8,
    year =      2021,
    month =     mar,
    day =       9,
    abstract =  {Internet mail defines the From: field to indicate the author of the message's content and the Sender: field to indicate who initially handled the message, on the author's behalf. The Sender: field is optional, if it has the same information as the From: field. This was not a problem, until development of stringent protections on use of the From: field. It has prompted Mediators, such as mailing lists, to modify the From: field, to circumvent mail rejection caused by those protections. In effect, the From: field has become dominated by its role as a handling identifier. The current specification augments the altered use of the From: field, by specifying the Author: field, which ensures identification of the original author of the message and is not subject to modification by Mediators.},
}