As everybody, I’ve too fight against spammers! I’m running my own MTA for several domain names and the box get it 24 hours a day by spammers. I’ve a quite performant SpamAssassin solution in place (~95% of spam is catched) but I’d like to prevent them to reach my SpamAssassing server!
I’m thinking about greylisting… First step is to check the implementations available on my platform… Stay tuned!