Fail2ban: Ip addresses are not blocked by Recidive

Hello,

I have noticed that the IP addresses that are supposed to be banned in Recidive, actually still can access the server.
Here is an extract from the F2B logs for a specific attacking IP address:

2025-02-23 02:36:01,726 fail2ban.filter [939832]: INFO [plesk-postfix] Found 185.226.117.240 - 2025-02-23 02:36:01
2025-02-23 02:37:38,237 fail2ban.filter [939832]: INFO [plesk-postfix] Found 185.226.117.240 - 2025-02-23 02:37:38
2025-02-23 02:39:13,230 fail2ban.filter...

Read more