Cisco Cisco Email Security Appliance C190 Referencia técnica
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C I S C O I R O N P O R T A S Y N C O S 7 . 3 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
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.
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:
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:
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
• 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
• MAIL FROM Identity
• SMTP response code and text returned for the REJECT
action
• verification time out (in seconds)