KAM channel (https://mcgrail.com/template/kam.cf_channel) users might want to check their rules..
KAM_deadweight2_sub.cf contains this: meta __RCVD_IN_SORBS 0 meta __RCVD_IN_ZEN 0 meta __RCVD_IN_MSPIKE_B 0 meta __RCVD_IN_MSPIKE_L 0 meta __RCVD_IN_DNSWL 0 Seems it's been disabling many active and useful DNSBL/WL lookups for a long time?