Difference between revisions of "BarracudaSpamFirewall/Scoring"

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Revision as of 15:47, 23 June 2020

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

Barracuda scoring.png

Notes: - Although the Tag action states that the subject line is modified, we do not modify the subject line at all. - 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