Problem appears to be a fault with the rhs.mailpolice.com blacklists:
bash-4.1$ dig txt anything.com.fraud.rhs.mailpolice.com.
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.23.rc1.el6_5.1 <<>> txt anything.com.fraud.rhs.mailpolice.com.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44079
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;anything.com.fraud.rhs.mailpolice.com. IN TXT
;; ANSWER SECTION:
anything.com.fraud.rhs.mailpolice.com. 300 IN TXT "v=spf1 a -all"
;; Query time: 58 msec
;; SERVER: 10.44.17.11#53(10.44.17.11)
;; WHEN: Wed May 21 11:50:31 2014
;; MSG SIZE rcvd: 81
bash-4.1$