27 Oct
2015
27 Oct
'15
10:33 a.m.
On 2015-10-27 13:08, Ian Smith wrote:
But that's not how SPF works. In SPF, the domain of the envelope header sender address is checked against that domain's sender policy. Since jdlabs.fr has no policy specified, a strict SPF policy at the NANOG server would have prevented this small issue.
No sane system rejects email based on the lack of a SPF policy. If the domain had a policy ending in "-all" and the spam wasn't coming from a source allowed by the policy then it should be marked as failing, held for moderator review, or rejected. -- “Simply stated, we have a new formula for Coke.” --- Roberto C. Goizueta, Company Chairman, Coca-Cola