If you are running your own postfix MTA and those mass email providers keep spamming you even when you write their abuse@ teams: I created a simple anti spam to

If you are running your own postfix MTA and those mass email providers keep spamming you even when you write their abuse@ teams: I created a simple anti spam tool/blocklist generator that can be integrated with postfix's postmap format, because spamhaus was totally useless for those providers. [1] It's trying to be dead-simple, and also blocks the alternative ASNs these spam providers have in reserve. Haven't found a fully automated way yet because whois protocol is kinda broken, but I'm working on it. [1] https://github.com/cookiengineer/postfix-spamdb https://github.com/cookiengineer/postfix-spamdb