I've run my own email for years and I don't have a serious spam problem despite posting my email everywhere. I get maybe 1-2 spam messages a week. The only spam

I've run my own email for years and I don't have a serious spam problem despite posting my email everywhere. I get maybe 1-2 spam messages a week. The only spam mitigation I use is greylisting and the zen.spamhaus.org blacklist.