Filter spam before forwarding

[Amosh85]

Hi,
I've installed ZCS ver. 7.2.0 open source edition.
I know that some of you saw in the past similar topics about the title I have aforementioned.

So...
as you my know some of us sometimes using forwarding to other mailbox from our organization, but we don't really want to forward spam mails.
Is there any option to filter spam before forwarding mails out of my domain?
I saw there is filters in the client side in any mailbox but I want to control it in the server side.
when I got an email that was tagged as spam, I want to restrict forwarding this mails out of my domain because other organizations can block my server in their spam list.

How do I control it?

Amos.

[vmahajan]

By default spam mails are moved into Junk folder and are not passed through user filters.

[Amosh85]

Yeah, I know but....
when you use forwarding addresses to mail box , zimbra filtered the spam but the MTA forward the spam to the forwarding addresses without any filters.
I want to prevent this situation.

[Amosh85]

anyone?

[cyberdeath]

Hi Amosh,

You can accomplish this by not using the forwarding rules within Zimbra but instead setup a Filter that forwards all mail that goes to your inbox. This will forward mail after it is filtered and not by the MTA as you specified.