Is this use of SPF flawed?
helo domain.com
mail from: someone(_at_)domain(_dot_)com
Look up domain.com SPF record
If the [connecting IP] = [SPF record] then "trust it more/whitelist"
else
do nothing
end if
Lets not destroy SPF records. They contain valuable reverse MX records
which cover well over 95% of the email traffic on the internet today. If
people choose to block based on negative SPF checks, it is their mail
system and hence their rules.
Perhaps SPF should be updated to have the above logic. Maybe this would
be an interesting topic to discuss with "them".
Back to my day job :-)
-Carl
--
Carl Hutzler
Director, Host Mail Development
America Online
cdhutzler(_at_)aol(_dot_)com
703.265.5521 work
703.915.6862 cell