Source Address Filter
From GWAVA Technologies Training
The Source Address event allows specific addresses to be specified for a block, quarantine, or different notifications. The Source Address filter searches incoming message’s ‘From:’ address for a match with any specified addresses in the list. There are no default addresses in this list.
Wildcards are recognized, though not recommended unless an entire domain is desired to be blocked. For example, to block a single address, add the undesired “username@domain.com” as a filter and specify the desired action: block, quarantine, notify.
To block an entire domain, enter the undesired “*@domain.com” as a filter and specify the desired action. A filter that specifies an entire domain, will act on all messages from that domain.