Zimbra webmail + Amavis + OpenDkim

[systemcrash]

I admins servers Zimbra 8.6 and 8.7, when try implementing dkim sign mesages my incoming e-mails not filter by amavis.

my master.cf

smtp inet n - n - - smtpd
-o smtpd_tls_security_level=%%zimbraMtaTlsSecurityLevel%%
%%comment SERVICE:opendkim%% -o content_filter=scan:[%%zimbraLocalBindAddress%%]:10030
%%uncomment LOCAL:postjournal_enabled%% -o smtpd_proxy_filter=[%%zimbraLocalBindAddress%%]:10027
%%uncomment LOCAL:postjournal_enabled%% -o smtpd_proxy_options=speed_adjust

If change line %%comment SERVICE:opendkim%% -o content_filter=scan:[%%zimbraLocalBindAddress%%]:10030 for uncomment, messages not send for amavis, but send signed.
With this configuration my mesages incoming send direct for amavis, but send without dkim signature.

Anyone can help-me for my incoming messages send for amavis, and webmail messages outgoing send with dkim signature.