URIBLs are used to lookup web links in the body of the email for compromised sites, if you have http links in the email try submitting those to the online lookup functions.
Required Lookup Values;
127.0.0.8,127.0.0.16,127.0.0.24,127.0.0.64,127.0.0.72,127.0.0.80,127.0.0.88,127.0.0.96,127.0.0.128,127.0.0.136,127.0.0.144,127.0.0.152,127.0.0.192,127.0.0.200,127.0.0.208,127.0.0.216
127.0.0.2,127.0.0.4,127.0.0.8,127.0.0.14