There is no real use case to expose statistics to the world, we can listen to Drake IP:
Hervil
$ sockstat | grep 9900 dovecot stats 28343 10 tcp4 *:9900 *:* dovecot stats 28343 11 tcp6 *:9900 *:* dovecot stats 28343 16 tcp4 172.27.27.3:9900 172.27.27.35:19362 root dovecot 28166 18 tcp4 *:9900 *:* root dovecot 28166 19 tcp6 *:9900 *:*
The established connection is the Prometheus one.