Cloudmark offers a free trial evaluation period that begins when you first install the software.
When the evaluation period ends, spam filtering is immediately disabled. An entry is logged in the Windows Event Log, indicating the end of the trial period, as well. An email is then sent to postmaster that provides purchasing information for Cloudmark Server Edition.
You can purchase a subscription to Cloudmark Server Edition by clicking Purchase in the Administration Console, which directs your to either the Cloudmark web site or your vendor, depending on who issued your activation code. When purchased, Cloudmark Server Edition is reactivated without the need to install and configure new software, or remove any existing software first.