Технические ссылки для Cisco Cisco Email Security Appliance C690
3-270
CLI Reference Guide for AsyncOS 9.6 for Cisco Email Security Appliances
Chapter 3 The Commands: Reference Examples
SMTP Services Configuration
The following example shows a user configuring the SPF/SIDF verification using the SPF Only
conformance level. The appliance performs the HELO identity check and accepts the None and Neutral
verification results and rejects the others. The CLI prompts for the SMTP actions are the same for all
identity types. The user does not define the SMTP actions for the MAIL FROM identity. The appliance
automatically accepts all verification results for the identity. The appliance uses the default reject code
and text for all REJECT results.
conformance level. The appliance performs the HELO identity check and accepts the None and Neutral
verification results and rejects the others. The CLI prompts for the SMTP actions are the same for all
identity types. The user does not define the SMTP actions for the MAIL FROM identity. The appliance
automatically accepts all verification results for the identity. The appliance uses the default reject code
and text for all REJECT results.
Example: SPF/SIDF Settings
Would you like to change SPF/SIDF settings? [N]> yes
Would you like to perform SPF/SIDF Verification? [N]> yes
What Conformance Level would you like to use?
1. SPF only
2. SIDF compatible
3. SIDF strict
[2]> 1
Would you like to have the HELO check performed? [Y]> y
Would you like to change SMTP actions taken as result of the SPF verification? [N]> y
Would you like to change SMTP actions taken for the HELO identity? [N]> y
SIDF Compatible
•
whether to perform a HELO identity check
•
whether the verification downgrades a Pass
result of the PRA identity to None if the
Resent-Sender: or Resent-From: headers are
present in the message
result of the PRA identity to None if the
Resent-Sender: or Resent-From: headers are
present in the message
•
SMTP actions taken based on the results of
the following identity checks:
the following identity checks:
•
HELO identity (if enabled)
•
MAIL FROM Identity
•
PRA Identity
•
SMTP response code and text returned for the
REJECT action
REJECT action
•
verification timeout (in seconds)
SIDF Strict
•
SMTP actions taken based on the results of
the following identity checks:
the following identity checks:
•
MAIL FROM Identity
•
PRA Identity
•
SMTP response code and text returned in case
of SPF REJECT action
of SPF REJECT action
•
verification timeout (in seconds)
Table 3-18
SPF Control Settings
Conformance Level
Available SPF Control Settings