2 points | by hash872 5 hours ago ago
1 comments
Can you block the originating IP blocks and/or ASNs of the offending mail/MX servers? It sounds like any regulatory intervention is going to be ineffective, so go straight to blackhole routing the inbound connections.
Can you block the originating IP blocks and/or ASNs of the offending mail/MX servers? It sounds like any regulatory intervention is going to be ineffective, so go straight to blackhole routing the inbound connections.