Applies to Barracuda Spam Firewalls
The Barracuda Spam Firewall is querying the Content Filters and finding an entry that matches the word or phrase within the message.
To verify and/or fix this, go to the Content Filtering page (v3.5 and below) BLOCK/ACCEPT > Subject Filtering, BLOCK/ACCEPT > Body Filtering, or BLOCK/ACCEPT > Header Filtering page, or (v4.0 & above) BLOCK/ACCEPT > Content Filtering, depending on the reason cited in the Message Log.
If the Barracuda is blocking ALL messages with a blank reference, i.e. Subject ( ), make sure a single space character has not been saved. If so, simply remove it and save changes.
If you receive the "Duplicate Filters" error refer to Solution #00005909
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