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6-5
Cisco AsyncOS 8.5 for Email User Guide
 
Chapter 6      Sender Reputation Filtering
  Editing Sender Reputation Filtering Score Thresholds for a Listener
Note
Other settings related to SBRS score thresholds, and Mail Flow Policy settings, are described in 
Before You Begin
•
If your appliance is set to receive mail from a local MX/MTA, identify upstream hosts that may mask 
the sender's IP address. See 
 for more information. 
•
Understand Sender Base Reputation Scores. See 
. 
•
Choose a filtering approach for your organization and note the recommended settings for that 
approach. See 
. 
Procedure 
Step 1
Select Mail Policies > HAT Overview. 
Step 2
Select the public listener from the Sender Groups (Listener) menu. 
Step 3
Click the link for a sender group.
For example, click the “SUSPECTLIST” link. 
Step 4
Click Edit Settings. 
Step 5
Enter the range of SenderBase Reputation Scores for this sender group. 
For example, for “WHITELIST,” enter the range 7.0 to 10. 
Step 6
Click Submit. 
Step 7
Repeat as needed for each sender group for this listener. 
Step 8
Commit changes. 
Related Topics
•
 
•
 
Testing Sender Reputation Filtering Using the SBRS
Unless you regularly receive a large portion of spam, or you have set up “dummy” accounts to 
specifically receive spam for your organization, it may be difficult to immediately test the SBRS policies 
you have implemented. However, if you add entries for reputation filtering with SenderBase Reputation 
Scores into a listener’s HAT as indicated in 
, you will notice that a smaller percentage of 
inbound mail will be “unclassified.”
Test the policies using the 
trace
 command with an arbitrary SBRS. See 
. The 
trace
 command is available in the CLI as well as the GUI.