On Thu, 12 Jul 2012 09:08:19 +0200 "Andrzej A. Filip" <andrzej.fi...@gmail.com> wrote:
> Would you suggest/recommend using spf-bayes? > [auto-learning of "worth" of given domain SPF record] That is an interesting idea... store tokens like: example.com*spf-pass and compute probabilities. A while ago, I did an informal count of messages we had processed and found that spammers were slightly more likely to have an SPF "pass" than non-spammers. It wasn't a huge difference and I don't know if it's still the case because SPF is now more widely adopted than before. (Spammers tend to be early adopters of technology.) Regards, David.