Internet Engineering Task Force (IETF) J. Klensin Request for Comments: 6530 Y. Ko Obsoletes: 4952, 5504, 5825 February 2012 Category: Standards Track ISSN: 2070-1721 Overview and Framework for Internationalized Email Abstract Full use of electronic mail throughout the world requires that (subject to other constraints) people be able to use close variations on their own names (written correctly in