When a content filtering rule is violated, the email notification includes both the replacement text and the prohibited content
The content filtering rule referred to in the email notification applies to ‘Inbound messages.’
This issue is fixed in Symantec Mail Security for Microsoft Exchange 6.0.7 and later. To learn how to obtain the latest version, read Obtaining an update or an upgrade for a Symantec Corporate product.
If you cannot upgrade, edit the content filtering rule so it does not apply to inbound messages.