Cloudmark Server Edition Online Help
The Spam Detected Action for Public Folders area allows you to specify the action that CSE automatically takes when it detect spam or fraud being delivered to a public folder.
This option moves spam to a public spam folder. The name of this folder is configured in the spam folders area of this tab, as explained in Configuring spam folder names.
This option inserts the specified text at the beginning of the message subject line, then delivers the message as usual. The default tag is “[SPAM].”
If these fields are grayed out, then mail checking for public folders is disabled. See Enabling mail checking for public folders.