i'm using a "antispam gateway" and behind that, a zimbra server.
I need to configure my zimbra suite, to read the tags on header, added by my antispam gateway, then take an action like delivery to user junk folder.
Anyone know how to do that?
PS.: I test this schema using a pure postfix on a secondary mx server, to check the headers, and its fine. My antispam gateway insert the tags on header and subject.
The antispam embeded on zimbra, clean all previous custom tags.