@misc{rfc5721,
    series =    {Request for Comments},
    number =    5721,
    howpublished =  {RFC 5721},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC5721},
    url =       {https://www.rfc-editor.org/info/rfc5721},
    author =    {Chris Newman and Randall Gellens},
    title =     {{POP3 Support for UTF-8}},
    pagetotal = 13,
    year =      2010,
    month =     feb,
    abstract =  {This specification extends the Post Office Protocol version 3 (POP3) to support un-encoded international characters in user names, passwords, mail addresses, message headers, and protocol-level textual error strings. This document defines an Experimental Protocol for the Internet community.},
}