We have several distribution groups set up that receive external email (e.g. info@mydomain.com). We're running Forefront for Exchange and have the anti-spam agents active. Content filtering is working well except for mail sent to the distribution groups. The distribution groups are receiving spam that is delivered to the user's inbox.
The mail headers show now X-MS-Exchange-Organization-SCL whereas all other email has a value for the SCL. This seems to suggest that distribution groups are not getting anti-spam processing.
Are distribution groups processed by the anti-spam agent? Am I missing a configuration item to enable it?
Thanks...
Rob