Daniel Gueniche wrote:
We have sent a mail from reflector.grenoble.cnrs.fr (147.173.3.39)
simulating a mail from user(_at_)another(_dot_)existing(_dot_)domain(_dot_) My question was
why SPF does not base its analyses on that IP address ? (presuming that
address is more reliable that the domain announciated in FROM field, no?)
What sort of analysis are you suggesting?
Looking up reverse DNS? So that if reverse DNS for an IP says
hostname.example.com, that IP can only send mail for example.com users? What
about an ISP, whose mail server may be handling mail for thousands of customer
domains? How would that work?
Paul.