Cisco Cisco Email Security Appliance C690 ユーザーガイド
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Cisco IronPort AsyncOS 7.1 for Email Advanced Configuration Guide
OL-22164-02
Chapter 4 Email Authentication
Figure 4-13
Enabling DKIM Verification
Step 3
Commit your changes.
DKIM Verification and Logging
Lines such as the following are added to the mail logs upon DKIM verification:
mail.current:Mon Aug 6 13:35:38 2007 Info: MID 17 DKIM: no signature
mail.current:Mon Aug 6 15:00:37 2007 Info: MID 18 DKIM: verified
pass
Configuring an Action for DKIM Verified Mail
When you verify DKIM mail, an Authentication-Results header is added to the
mail, but the mail is accepted regardless of the authentication result. To configure
actions based on these authentication results, you can create a content filter to
perform actions on the DKIM-verified mail. For example, if DKIM verification
fails, you may want configure the mail to be delivered, bounced, dropped, or sent
to a quarantine. To do this, you must configure an action using a content filter.
mail, but the mail is accepted regardless of the authentication result. To configure
actions based on these authentication results, you can create a content filter to
perform actions on the DKIM-verified mail. For example, if DKIM verification
fails, you may want configure the mail to be delivered, bounced, dropped, or sent
to a quarantine. To do this, you must configure an action using a content filter.
To add an action from the GUI, complete the following steps:
Step 1
From Mail Policies > Incoming Filters, click Add Filter
Step 2
In the Conditions section, click Add Condition
Step 3
Select DKIM Authentication.