Hello,
I have too many logging attempts from 91.200.12.*
But fail2ban not banned that IP because every time is diferent IP.
I want to add it manually, but I can't find that option in plesk.
Also before this post I tried to find a way in your documentation, and without success.
In attachment you can find log with those attempts.
Also this is my plesk-postfix...
How to ban IP range with fail2ban
I have too many logging attempts from 91.200.12.*
But fail2ban not banned that IP because every time is diferent IP.
I want to add it manually, but I can't find that option in plesk.
Also before this post I tried to find a way in your documentation, and without success.
In attachment you can find log with those attempts.
Also this is my plesk-postfix...
How to ban IP range with fail2ban