Our company use open source version 8.0.4 of Zimbra Mail Systems.
We have some problem with relay mails. I think there is some problem or my configuration is not correct.
Our mail server receive many emails which are not directed to my configured domains and after
they go through amavis they are queued and send to internet like originated from my server.
In MTA I enter Safe Networks but it doesn't help. Mail after leave Amavis have adres origin 127.0.0.1 which is in safe network.
I don't know how can I block use my mailserver as relay for unsolicited mails from internet not directed to my domain.
Can somebody help me configure it ?