@misc{rfc8461,
    series =    {Request for Comments},
    number =    8461,
    howpublished =  {RFC 8461},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC8461},
    url =       {https://www.rfc-editor.org/info/rfc8461},
    author =    {Daniel Margolis and Mark Risher and Binu Ramakrishnan and Alex Brotman and Janet Jones},
    title =     {{SMTP MTA Strict Transport Security (MTA-STS)}},
    pagetotal = 29,
    year =      2018,
    month =     sep,
    abstract =  {SMTP MTA Strict Transport Security (MTA-STS) is a mechanism enabling mail service providers (SPs) to declare their ability to receive Transport Layer Security (TLS) secure SMTP connections and to specify whether sending SMTP servers should refuse to deliver to MX hosts that do not offer TLS with a trusted server certificate.},
}