I see that my installation (5.0.18) outputs the client's IP information in a Received: line of the header as my server accepts the email, even when it is outgoing. I don't want that information to leak.
BTW, it only happens when I use a MUA. The weeb interface doesn't leak it.
It's a postfix issue, but how do I set Zimbra so it holds the tweak?
This could be a deal breaker. I can't recommend Zimbra to my customers if this problem cannot be solved...
Is there a way to prevent Zimbra from doing this?