Some time ago I posted about my experience blocking one country and some ASNs directly via iptables from my mail serv...

🫧 Open on Bubbles Some time ago I posted about my experience blocking one country and some ASNs directly via iptables from my mail server. It seems like there’s an even better source of IPs and networks to block. The Spamhaus “Don’t Route Or Peer Lists (DROP)” lists. Currently my mail setup is configured to block everything from these lists. After that, failed login attempts are blocked using fail2ban. And both Postscreen and Rspamd are configured with the usual DNS block lists (like Spamhaus), but also wit