Send Dovecot logs to rsyslog

Hello, I'm trying to send Dovecot logs to a Graylog server. To do this, I'd like to pass logs to rsyslog and rsyslog pass logs to remote Graylog server. I set in dovecot.conf : syslog_facility = local5.info I set in rsyslog.conf : local5.info @192.168.xxx.xxx:5555 Restarted services and it doesn't work.

I use nmap to test if port 5555 is opened and this port is open.

What missed I ?

Thanks

Nicolas