Unwanted email, also known as spam, can quickly fill your Inbox. A large volume of spam decreases bandwidth, degrades employee productivity, and wastes network resources. The WatchGuard spamBlocker option increases your capacity to catch spam at the edge of your network when it tries to enter your system. If you have purchased and enabled the spamBlocker feature, the fields in the spamBlocker category set the actions for email messages identified as spam.
Although you can use the proxy definition screens to activate and configure spamBlocker, it is easier to use the Subscription Services menu in Policy Manager. For more information, see About spamBlocker.