@misc{rfc5260,
    series =    {Request for Comments},
    number =    5260,
    howpublished =  {RFC 5260},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC5260},
    url =       {https://www.rfc-editor.org/info/rfc5260},
    author =    {Ned Freed},
    title =     {{Sieve Email Filtering: Date and Index Extensions}},
    pagetotal = 13,
    year =      2008,
    month =     jul,
    abstract =  {This document describes the "date" and "index" extensions to the Sieve email filtering language. The "date" extension gives Sieve the ability to test date and time values in various ways. The "index" extension provides a means to limit header and address tests to specific instances of header fields when header fields are repeated. {[}STANDARDS-TRACK{]}},
}