Rspamd with ratelimit module.

It seems the rspamd ratelimit module in debian 10 and centos 8 is not working anymore.
Can anyone verify this?
Here is my config for the ratelimit.conf

Code:

symbol = "RATELIMIT";
rates {
      only_3_per_hour = {
                         selector = 'user.lower';
                         bucket = {
                                  burst = 3;
                                  rate = "1 / 1min";
                         }
      }
}

After sending about 10 quick emails, it still does not stop me from sending more.
Tried changing the rate to 0.06/1min and still does not stop me from sending more.
Any advice on how to get rspamd's ratelimit to work on ispconfig 3.2.3?

 

Yes! Yes! Yes! It is working!
Thank you very much for the config.

Here is the strange thing, on CentOS 7, rspamd 2.7, my config works.
On Debian 10, CentOS 8, rspamd 2.7, my config does not work and your config works.
Very strange. Any idea why?

 

Any idea why the above post can only be seen after login? Is there something that needs to be done so that it can be seen even without login?