How to switch on logging for smmapd?

Hello.

How to switch on logging for smmapd?
Setup: FreeBSD 11, cyrus-imapd 3.
=== imapd.conf ===
admins: cyrus
allowanonymouslogin: no
allowplaintext: yes
altnamespace: yes
annotation_db: skiplist
auditlog: 1
configdirectory: /data/imap
debug: 1
defaultpartition: default
imapidresponse: yes
imapmagicplus: 0
lmtp_downcase_rcpt: 1
lmtpsocket: /data/imap/socket/lmtp
mboxlist_db: skiplist
munge8bit: 0
partition-default: /data/spool/imap
postmaster: postmaster
rfc2046_strict: 0
sasl_auxprop_plugin: sasldb
sasl_log_level: 1
sasl_mech_list: plain cram-md5 digest-md5 login
sasl_pwcheck_method: auxprop
seenstate_db: skiplist
sendmail: /usr/sbin/sendmail
sievedir: /data/imap/sieve
subscription_db: flat
tls_server_ca_file: /data/imap/certs/imapserver.pem
tls_server_cert: /data/imap/certs/imapserver.pem
tls_server_key: /data/imap/certs/imapserver.pem
tls_session_timeout: 1440
unixhierarchysep: no
virtdomains: userid

In the /var/log/all.log i see only this:
Apr 12 13:00:35 mail master[91531]: about to exec 
/usr/local/cyrus/libexec/smmapd
Apr 12 13:00:38 mail master[4306]: process type:SERVICE name:smmapunix 
path:/usr/local/cyrus/libexec/smmapd age:516.065s pid:87452 exited normally

Help please.

And thanks for answers.

-- 
Demin Alexander / Network Administrator
Group of companies Spectrum / tel. (+7 495) 995-8999
Russia, Moscow, 125009, Strastnoy blvr. 8
Web: http://www.spectrum.ru/

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