Rich,
rg> I wonder how Yahoo!'s new policy (is it even in place or just an
rg> idea?) will affect me.
DomainKeys is a proposed Internet standard, rather than a Yahoo
"policy". They have been working with others in industry to develop the
specification and will be pursuing it in the IETF to make it a
standardize it. (If this paragraph sounds like marketing, it's because
I've been one of the ones participating in their effort, but I have no
business relationship with them.)
rg> Part of what this says is that there will be header checking that will
rg> refuse emails with headers the system doesn't like.
rg> I send with a "From" line that may be any one of a number of domains
rg> BUT in reality all my mail is SMTP served by earthlink.
The SPF and Sender-ID mechanisms are likely to cause you far more
problems than DomainKeys will. The first two require registering your
transit MTAs with your domain.
DomainKeys is in the spirit of PGP and S/Mime, but tuned for the problem
of transit authentication, rather than long-term storage and privacy.
All of them have ways to digitally sign the message.
Given that nothing has yet reduced the amount of global spam, and given
that so much spam is spoofed and/or comes through compromised systems,
it's good that there are multiple efforts.
One of them might work.
d/
ps. Full Disclosure:
I have a proposal, too. See <http://brandenburg.com/CSV>
--
Dave Crocker <mailto:[EMAIL PROTECTED]>
Brandenburg InternetWorking <http://www.brandenburg.com>
Sunnyvale, CA USA <tel:+1.408.246.8253>, <fax:+1.866.358.5301>
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