https://mxtoolbox.com/problem/blacklist/spfbl-dnsbl?&ip=200.40.191.146
SPFBL DNSBL - BLACKLIST
dnsblblacklist
https://glockapps.com/blacklist/dnsbl-spfbl-net/
dnsbl.spfbl.net | GlockApps
Jun 4, 2020 - This DNSBL uses SPFBL's dynamic reputation table as a basis to list the IPs and lists systems that send spam.
dnsblglockapps