Cisco Cisco Email Security Appliance C160 Guia Do Utilizador
![Cisco](https://files.manualsbrain.com/attachments/7380d0050044647c30f5c24bbbf5d0c0b6d9bb84/common/fit/150/50/faa183d287233c52228cfea3dbc2a127fe780f60564fcb0955d9c3d1cd23/brand_logo.png)
4-259
Cisco IronPort AsyncOS 7.1 for Email Advanced Configuration Guide
OL-22164-02
Chapter 4 Email Authentication
Figure 4-15
Enabling SPF/SIDF in the Mail Flow Policy
Step 5
Set the level of conformance (the default is SIDF-compatible). This option allows
you to determine which standard of SPF or SIDF verification to use. In addition
to SIDF conformance, you can choose SIDF-compatible, which combines SPF
and SIDF.
you to determine which standard of SPF or SIDF verification to use. In addition
to SIDF conformance, you can choose SIDF-compatible, which combines SPF
and SIDF.
Table 4-1
SPF/SIDF Conformance Levels
Conformance Level
Description
SPF
The SPF/SIDF verification behaves according to
RFC4408.
RFC4408.
- No purported responsible address (PRA) identity
verification takes place.
verification takes place.
NOTE: Select this conformance option to test against
the HELO identity.
the HELO identity.