@misc{rfc6710,
    series =    {Request for Comments},
    number =    6710,
    howpublished =  {RFC 6710},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC6710},
    url =       {https://www.rfc-editor.org/info/rfc6710},
    author =    {Alexey Melnikov and Ken Carlberg},
    title =     {{Simple Mail Transfer Protocol Extension for Message Transfer Priorities}},
    pagetotal = 28,
    year =      2012,
    month =     aug,
    abstract =  {This memo defines an extension to the SMTP (Simple Mail Transfer Protocol) service whereby messages are given a label to indicate preferential handling, to enable mail handling nodes to take this information into account for onward processing. {[}STANDARDS-TRACK{]}},
}