New Relic: Too many included lookups

Your SPF record required more than 10 DNS Lookups to be performed during the test. The number of "include" mechanisms and chained "redirect' modifiers should be kept to a minimum. According to RFC 4408, 'SPF implementations MUST limit the number of mechanisms and modifiers that do DNS Lookups to ...

libspf2 DNS TXT record parsing buffer overflow

Overview libspf2 contains a buffer overflow vulnerability in code that parses DNS TXT records. Description libspf2 is a widely-deployed implementation of the Sender Policy Framework. According to RFC 4408: An SPF record is a DNS Resource Record RR that declares which hosts are, and are not,...