Cisco Cisco Email Security Appliance C170 Betriebsanweisung
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Cisco IronPort AsyncOS 7.3 for Email Advanced Configuration Guide
OL-23081-01
Chapter 5 Email Authentication
Enabling Signing for Outgoing Mail
DomainKeys and DKIM signing is enabled on mail flow policies for outbound
mail. For more information, see the “Configuring the Gateway to Receive Mail”
chapter in the Cisco IronPort AsyncOS for Email Configuration Guide.
mail. For more information, see the “Configuring the Gateway to Receive Mail”
chapter in the Cisco IronPort AsyncOS for Email Configuration Guide.
To enable signing on an outgoing mail flow policy:
Step 1
On the Mail Flow Policies page (from the Mail Policies menu), click on the
RELAYED mail flow policy (outgoing).
RELAYED mail flow policy (outgoing).
Step 2
From the Security Features section, enable DomainKeys/DKIM Signing by
selecting On.
selecting On.
Figure 5-5
Enabling DomainKeys/DKIM Signing
Step 3
Submit and commit your changes.
Enabling Signing for Bounce and Delay Messages
In addition to signing outbound messages, you may want to sign bounce and delay
messages. You may want to do this to alert recipients that the bounce and delay
messages they receive from your company are legitimate. To enable DomainKeys
and DKIM signing for bounce and delay messages, you enable
DomainKeys/DKIM signing for the bounce profile associated with the public
listener.
messages. You may want to do this to alert recipients that the bounce and delay
messages they receive from your company are legitimate. To enable DomainKeys
and DKIM signing for bounce and delay messages, you enable
DomainKeys/DKIM signing for the bounce profile associated with the public
listener.
To enable signing for bounce and delay messages:
Step 1
On the bounce profile associated with the public listener where you will send
signed outbound messages, go to Hard Bounce and Delay Warning Messages.
signed outbound messages, go to Hard Bounce and Delay Warning Messages.
Step 2
Enable “Use Domain Key Signing for Bounce and Delay Messages”: