A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Macros Nixed by Major Providers
Author(s) : Douglas Otis
Dave Rand
Filename : draft-otis-spfbis-macros-nixed-01.txt
Pages : 12
Date : 2013-05-28
Abstract:
SPF is a popular tool for managing email blocking issues. It has
also helped reduce backscatter related with Non-Delivery
Notifications as was intended. A practically unused feature is the
SPF macro capability that SPFbis still in part retains. This feature
greatly diminishes SPF's utility and actually threatens email
interchange, especially when used in conjunction with secondary
policy layers when also ignored by major providers. The macro
mechanism is also unable to cope with internationalization, and is
found in virtually none of the published resource records. It is
counter productive to retain the largely unused and often unsupported
macro feature, despite efforts expended to develop the macro
language.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-otis-spfbis-macros-nixed
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-otis-spfbis-macros-nixed-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-otis-spfbis-macros-nixed-01
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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