but when testing with the command "dig mx mydomain.com" will return my IP LAN, and when you query external DNS will give my mistake because not even pointing my public IP. I tested this way before I change my DNS for the current configuration.
I used the procedure in this topic...
Ps.: Just do not know how to put "Resolved" in the topic/opt/zimbra/zimbramon/bin/sa-update --updatedir /opt/zimbra/conf/spamassassin --allowplugins && /opt/zimbra/bin/zmamavisdctl restart
Thank you all