dovecot 2.2.36 and wforce

[Tobi]

Hi list

I'm trying to setup dovecot 2.2.36 on a Centos6 to communicate with a
wforce daemon on the remote side. wforce is latest released from git
repo. Daemon part is working and I can successfully send queries from
remote systems to wforce via curl

For dovecot I configured in /etc/dovecot/conf.d/95-wforce.conf

> auth_policy_server_url = http://REMOTE_IP:8084/
> auth_policy_hash_nonce = my_random
> auth_policy_server_api_header = Authorization: Basic <BASE64 of
wforce:my_password>
> auth_policy_request_attributes = login=%{requested_username}
pwhash=%{hashed_password} remote=%{rip} device_id=%{client_id} protocol=%s

restarted dovecot without errors, but upon testing via imap I cannot see
just one single tcp paket leaving direction REMOTE_IP on port 8084. It
looks like auth policy in not involved at all.

Thanks for any idea

tobi