Cisco Cisco Email Security Appliance C190 Technische Referenzen

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I R O N P O R T   A S Y N C O S   7 . 1   C L I   R E F E R E N C E   G U I D E

SMTP response from the other verification results. For TempError, the default response code is 
451 and the default message text is 

#4.4.3 Temporary error occurred during SPF 

verification

. For all other verification results, the default response code is 550 and the 

default message text is 

#5.7.1 SPF unauthorized mail is prohibited

. You can 

specify your own response code and message text for TempError and the other verification 
results. 

Optionally, you can configure the appliance to return a third-party response from the SPF 
publisher domain if the REJECT action is taken for Neutral, SoftFail, or Fail verification result. 
By default, the appliance returns the following response:

   

 550-#5.7.1 SPF unauthorized mail is prohibited.

    550-The domain example.com explains:

    550 <Response text from SPF domain publisher>

To enable these SPF/SIDF settings, use the 

listenerconfig -> edit

 subcommand and 

select a listener. Then use the 

hostaccess -> default

 subcommand to edit the Host 

Access Table’s default settings. Answer yes to the following prompts to configure the SPF 
controls:

The following SPF control settings are available for the Host Access Table:

Would you like to change SPF/SIDF settings?  [N]> yes

Would you like to perform SPF/SIDF Verification?  [Y]> yes

Table 3-13 SPF Control Settings

Conformance Level

Available SPF Control Settings

SPF Only

• whether to perform HELO identity check
• SMTP actions taken based on the results of the following 

identity checks:

• HELO identity (if enabled)
• MAIL FROM Identity
• SMTP response code and text returned for the REJECT 

action

• verification time out (in seconds)