I wrote about using fail2ban with postfix[0] almost 15 years ago for blocking IPs that were sending to unknown email addresses on my server. It was a godsend fo

I wrote about using fail2ban with postfix[0] almost 15 years ago for blocking IPs that were sending to unknown email addresses on my server. It was a godsend for blocking tons of spam back then. [0]: https://www.dp.cx/blog/postfix---fail2ban---win.html https://www.dp.cx/blog/postfix---fail2ban---win.html