Cisco Cisco Email Security Appliance C190 Guía Del Usuario

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Cisco IronPort AsyncOS 7.5 for Email Advanced Configuration Guide

OL-25137-01

Chapter 5 Email Authentication

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

Table 5-2

SPF Control Settings via the CLI

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)

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

•

SMTP actions taken based on the results of
the following identity checks:

–

HELO identity (if enabled)

–

MAIL FROM Identity

–

PRA Identity

•

SMTP response code and text returned for
the REJECT action

•

verification timeout (in seconds)

SIDF Strict

•

SMTP actions taken based on the results of
the following identity checks:

–

MAIL FROM Identity

–

PRA Identity

•

SMTP response code and text returned in
case of SPF REJECT action

•

verification timeout (in seconds)