So, these warnings may be unrelated to URILocalBL: I disabled that plugin and the errors are still appearing.
I forgot to mention that I also upgraded from SA v3.3.2 to v3.4.2 at the same time. Soooo, there's that. The only change to my /etc/mail/spamassassin/ files were the addition of the v340.pre, v341.pre, and v342.pre files; I removed these and the warning still comes. There were some changes to the code resolving GeoIP DBs in 3.4.0, which might be the cause. The 'country_db_type' and 'country_db_path' options were introduced. I've tried setting these, but it didn't help: country_db_type GeoIP country_db_path /usr/share/GeoIP/GeoLiteCountry.dat My setup, briefly: running SA on CentOS 6 via spamdyke → qmail-smtpd → simscan → spamc → spamd, which is executed like: exec /usr/bin/spamd -q -x -u vpopmail -s stderr -P -m 20 --min-spare=2 --max-spare=5 --max-conn-per-child=200 --timeout-child=40 --timeout-tcp=40 Here is the output from `spamassassin -D --lint`: https://pastebin.com/raw/Zr7umPQv The only GeoIP config I can find is in /etc/GeoIP.conf: UserId 999999 LicenseKey 000000000000 ProductIds 506 517 533 Again, my GeoIP versions are pretty old: GeoIP-1.6.5-1.el6.x86_64 GeoIP-devel-1.6.5-1.el6.x86_64 GeoIP-GeoLite-data-2018.04-1.el6.noarch GeoIP-GeoLite-data-extra-2018.04-1.el6.noarch geoipupdate-2.2.1-2.el6.x86_64 perl-Geo-IP-1.38-1.el6.rf.x86_64 perl-Geo-IPfree-0.8-1.el6.rf.noarch Thanks all, Quinn