On 26/01/2018 23:54, David B Funk wrote:
Regardless, giving -1 score for SPF_PASS and another -1 for SPF_HELO_PASS is nontrivial DainBRamage.It's trivial for a spammer to set up SPF on a throw-away domain and thus waltz thru that kind of filtering.
You are spot on, spammers are much more competent in setting up spf/dkim than most of legit mail administrators.
I personally score spf/dkim that passes at 0 and only penalize the fails Daniele
