BarracudaSpamFirewall/Scoring

Our Barracuda spam firewalls will score every message that passes through them based on a number of internal rules and inject message headers into the message based on the outcome/action taken. The specifics of these headers will vary based on the score the message receives. Our domain defaults for scoring are:

• 0.0 to 3.4: Allow the message
• 3.5 to 8.9: Tag the message
• 9.0 and above: Quarantine the message

You can change these default scoring thresholds if you would like by logging into the Barracudas, and going to Preferences -> Spam Settings from the top menu bar.

Notes:

• Although the Tag action states that the subject line is modified, we do not modify the subject line (i.e. prepend a tag) at all, and it is not possible to set this on a per-user account level.
• Although Block is listed as an action for a score of anything of 10.0 and above, we do not block any messages.

Headers

As an example of the headers injected into a message for each possible action our firewalls will take:

Allowed message (passes through to your Inbox):

X-Barracuda-Spam-Score: 0.00
X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=3.5 QUARANTINE_LEVEL=8.0 KILL_LEVEL=1000.0 tests=

Tagged message (passes through to your Inbox):

X-Barracuda-Spam-Score: 3.60
X-Barracuda-Spam-Status: Yes, SCORE=3.60 using per-user scores of TAG_LEVEL=3.5 QUARANTINE_LEVEL=9.0 KILL_LEVEL=1000.0 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_MV0951, BSF_SC0_MV0951_2, BSF_SC0_MV0951_5, HTML_MESSAGE
X-Barracuda-Spam-Flag: YES

Quarantined message (goes to your spam quarantine):

X-Barracuda-Spam-Score: 10.11
X-Barracuda-Spam-Status: Yes, SCORE=10.11 using per-user scores of TAG_LEVEL=3.5 QUARANTINE_LEVEL=9.0 KILL_LEVEL=1000.0 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_SA912_RP_FR, BSF_SC5_MJ1963, FH_HELO_EQ_D_D_D_D, FROM_LOCAL_HEX, HTML_IMAGE_ONLY_08, HTML_MESSAGE, HTML_SHORT_LINK_IMG_1, MIME_HTML_ONLY, RDNS_DYNAMIC, URLBL_BC