Bash – How to allow connections in zimbra/mail client

I installed a Zimbra server into CentOS 6, enter the admin panel via web HTTPS over port 7071, the problem is I can not access the web mail client (port 445), I can only access via localhost. I reviewed this port from bash:

[root@host etc]# netstat -antp | grep 445
tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN 15751/java
[root@host etc]# cat /proc/15751/cmdline
/opt/zimbra/java/bin/java-Dfile.encoding=UTF-8-server-Dhttps.protocols=TLSv1,TLSv1.1,TLSv1.2-Djdk.tls.client.protocols=TLSv1,TLSv1.1,TLSv1.2-Djava.awt.headless=true-Dsun.net.inetaddr.ttl=60-Dorg.apache.jasper.compiler.disablejsr199=true-XX:+UseConcMarkSweepGC-XX:PermSize=128m-XX:MaxPermSize=350m-XX:SoftRefLRUPolicyMSPerMB=1-verbose:gc-XX:+PrintGCDetails-XX:+PrintGCDateStamps-XX:+PrintGCApplicationStoppedTime-XX:-OmitStackTraceInFastThrow-Xloggc:/opt/zimbra/log/gc.log-XX:-UseGCLogFileRotation-XX:NumberOfGCLogFiles=20-XX:GCLogFileSize=4096K-Djava.net.preferIPv4Stack=true-Xss256k-Xms6410m-Xmx6410m-Xmn1602m-Djava.io.tmpdir=/opt/zimbra/mailboxd/work-Djava.library.path=/opt/zimbra/lib-Djava.endorsed.dirs=/opt/zimbra/mailboxd/common/endorsed-Dzimbra.config=/opt/zimbra/conf/localconfig.xml-Djetty.home=/opt/zimbra/mailboxd-DSTART=/opt/zimbra/mailboxd/etc/start.config-jar/opt/zimbra/mailboxd/start.jar--module=zimbra,server,servlet,servlets,jsp,jmx,resources,websocket,ext,plus,rewrite,monitor,continuation,webapp,setuidjetty.home=/opt/zimbra/mailboxd/opt/zimbra/mailboxd/etc/jetty.xml

From localhost I have no problems but from the outside can not, I tried to modify the jetty.xml found in zimbra settings and restart the mailbox but the service I zimbra this file overwrites the previous settings.

How I can set zimbra correctly so you can access the web mail client from any external ip?