Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

Unlike the 

spf-status 

rule, the 

spf-passed

 rule reduces the SPF/SIDF verification values to a simple 

Boolean. The following verification results are treated as not passed in the 

spf-passed

 rule: None, 

Neutral, Softfail, TempError, PermError, and Fail. To perform actions on messages based on more 
granular results, use the 

spf-status

 rule. 

Test the results of SPF/SIDF verification and use these results to determine how to treat SPF/SIDF 
failures because different organizations implement SPF/SIDF in different ways. Use a combination of 
content filters, message filters, and the Email Security Monitor - Content Filters report to test the results 
of the SPF/SIDF verification.

Your degree of dependence on SPF/SIDF verification determines the level of granularity at which you 
test SPF/SIDF results.

To get a basic measure of the SPF/SIDF verification results for incoming mail, you can use content filters 
and the Email Security Monitor - Content Filters page. This test provides a view of the number of 
messages received for each type of SPF/SIDF verification result. 

Enable SPF/SIDF verification for a mail flow policy on an incoming listener, and use a content filter to 
configure an action to take. For information on enabling SPF/SIDF, see 

Create an 

spf-status

 content filter for each type of SPF/SIDF verification. Use a naming convention to 

indicate the type of verification. For example, use “SPF-Passed” for messages that pass SPF/SIDF 
verification, or “SPF-TempErr” for messages that weren’t passed due to a transient error during 
verification. For information about creating an 

spf-status

 content filter, see 

. 

After you have processed a number of SPF/SIDF verified messages, click Monitor > Content Filters to 
see how many messages triggered each of the SPF/SIDF verified content filters. 

For more comprehensive information about SPF/SIDF verification results, only enable SPF/SIDF 
verification for specific groups of senders, and review the results for those specific senders. Then, create 
a mail policy for that particular group and enable SPF/SIDF verification on the mail policy. Create