A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : IPv6 Email Authentication
Author(s) : Douglas Otis
Dave Rand
Filename : draft-otis-ipv6-email-authent-01.txt
Pages : 18
Date : 2013-05-09
Abstract:
IPv6 facilitates network routing over an incredibly vast address
space, but abuse mitigation resolving to underlying structures of
routes or blocks of prefixes would be highly disruptive due to
collateral effects. Use of domains minimizes unintended coincidental
blocking while offering the consolidation necessary to facilitate
connection management. Currently, email lacks conventions ensuring
SMTP clients can be identified by an authenticated domain.
DKIM is independent of intended recipients and domains accountable
for having sent email. SPF normally requires several text based
responses imposing high overhead to query various locations. These
locations can be constructed by email-address local-part macros which
can flood caches or leverage DNS name compression to further increase
network DDoS amplifications when receivers' attempt to verify message
sources which may then only offer authorization, not authentication
of accountable domains. Most email abuse, including what might be
imposed by SPF, is prevented with comprehensive mapping of the
address space, but such mapping is impractical with IPv6.
An effective authenticated domain name alternative is needed to
provide a basis for assessing and reacting to abusive behavior. For
most high scale protocols, this involves cryptography.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-otis-ipv6-email-authent
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-otis-ipv6-email-authent-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-otis-ipv6-email-authent-01
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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