[Mimedefang] Deadline for SPF records

[Daniel Taylor]

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David F. Skoll wrote:
| On Mon, 9 Aug 2004, Daniel Taylor wrote:
|
|
|>All SPF-Pass means is that the e-mail came from an authorized
|>sender for the domain in question.
|
|
| Right.  SPF is *not* an anti-spam technology.
|
Oh no, not again. This is why I held off from responding to this thread.

Sender verification is a necessary but insufficient tool in the
anti-spam arsenal. It does little to nothing *BY ITSELF*, but it enables
the use of tools such as Domain-based blackhole lists that are
impossible without it.

Just because a hammer won't hold two boards together doesn't mean
that it isn't a construction tool.

SPF IS an anti-spam technology, because it enables more effective
anti-spam measures.

SPF IS NOT the solution to spam.

SPF right now is great fodder for your Bayesian filter, and
blocks quite a few hostile e-mails cheap, such as from=recipient
pattern spam/viruses. Nobody else in the world needs to use
it for you to gain those benefits, since you can apply a weak
"default" SPF record to any domain that doesn't publish.

- --
Daniel Taylor          VP Operations            Vocal Laboratories, Inc.
dtaylor at vocalabs.com   http://www.vocalabs.com/        (952)941-6580x203
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