Technical References

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Cisco AsyncOS 9.1 for Email CLI Reference Guide
Chapter 3 The Commands: Reference Examples
SMTP Services Configuration
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 3-19 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)