This question applies to Email Security Gateways model 400 and higher, with firmware 3.3 and greater.
If at least 2 Email Security Gateways are clustered together, the message log is synchronized irrespective of the geographical location. Whenever a message is logged on one of the Barracuda Spam Firewalls, it will be visible on each Email Security Gateway in the cluster, unless this option has been disabled.
To force a Email Security Gateway's message log to display only local messages, click the Preferences button on the Basic > Message Log page and set the Only view local messages option to Yes.
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