Trying to research a few errors in my maillog relating to spf revealed an own goal by the top pished company in the world.
Taken from the de-facto SPF implemetation:
“use constant default_max_dns_interactive_terms => 10; # RFC 4408, 10.1/6 ”
10 interactive terms. Ten is the default, because SPF is supposed to be a “light check”.
With eBay/PayPals [...]
