Excluding Microsoft Exchange Server messages from the scan
You can exclude from anti-spam scanning email messages which originate within the internal network (for example, corporate mail). Please note that messages are considered internal mail if Microsoft Office Outlook is used on all network computers and user mailboxes are located on the same Exchange server or on servers linked via X400 connectors.
By default, the Anti-Spam component does not scan Microsoft Exchange Server messages.
If you wish Anti-Spam to analyze the messages transferred via Microsoft Exchange Server, perform the following steps: