Hi everyone - I've burned enough hours trying to figure this one out, and I'm finally giving up to ask for help. I'm getting hit by a ton of spam, and as I go through some of the messages with low scores, I'm noticing that a lot of the messages are from source IPs that are on one (or several) of the DNSBLs that I'm using (Spamhaus, Spamcop, and Barracuda). I've also got the Spamhaus DBL score set fairly high (10, for testing), and it rarely hits, but I can manually verify some of the URLs from message bodies that aren't showing hits on the URIBL_DBL_SPAM rule and confirm that the URLs are listed on the Spamhaus DBL. I've run lookups via the shell from my server and confirmed that DNSBL and DBL lookups work just fine...but Spamassassin doesn't always seem to do the lookups. My mail volume is low enough that I know I'm not hitting the BLs' lookup limits/thresholds, and I'm running my own DNS server, so lookups appear to be fast. Any pointers on what may cause Spamassassin to (sometimes) not run the DNSBL/URIRBL checks?