A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Email Address Internationalization Working Group of the IETF.
Title : SMTP extension for internationalized email address
Author(s) : J. Yao, W. Mao
Filename : draft-ietf-eai-smtpext-00.txt
Pages : 14
Date : 2006-5-12
Internationalized eMail Address (IMA) includes two parts, the local
part and the domain part. The way email addresses are used by
protocols are different from the way domain names are used. The most
critical difference is that emails are delivered through a chain of
peering clients and servers while domain names are resolved by name
servers by looking up their own tables. In addition to this, email
transport protocols SMTP and ESMTP provide a negotiation mechanism
through which clients can make decisions for further processing. So
IMA is different from the internationalized domain name (IDN). IMA
can be solved by exploiting the negotiation mechanism while IDN can
not use the negotiation mechanism. So IMA should be solved in the
mail transport-level using the negotiation mechanism, which is an
architecturally desirable approach. This document specifies the use
of SMTP extension for IMA delivery. It also mentions the backward
compatible mechanism for downgrade procedure, as specified in an
associated specification. The protocol proposed here is MTA-level
solution which is feasible, architecturally more elegant, and not as
difficult to deploy in relevant communities.
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