It seems like this topic gets a lot of repeat questions and might be deserving of a special focus. I'd like to suggest that a separate forum be created the Zimbra Collaboration Suite heading so that new arrivals would know immediately where to go.

If not, at least certain threads could be stickied in the Admin forum, such as one pointing to the Wiki article on improving antispam, and http://www.zimbra.com/forums/adminis...n-plugins.html