Internationalizing Mail Addresses in Applications (IMAA)

Document Type Expired Internet-Draft (individual)
Authors Paul Hoffman  , Adam Costello 
Last updated 2003-10-09
Stream (None)
Intended RFC status Proposed Standard
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Internationalizing Domain Names in Applications (IDNA) specification describes how to process domain names that contain characters outside the ASCII repertoire. A user who has a non-ASCII domain name may want to use it in an Internet mail address that contains non-ASCII characters not only in the domain part but also in the local part (the part to the left of the '@'). This document describes how to use non-ASCII characters in local parts. It defines internationalized local parts (ILPs), internationalized mail addresses (IMAs), and a mechanism called IMAA for handling them in a standard fashion.


Paul Hoffman (
Adam Costello (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)