Cisco Cisco Email Security Appliance C650 Guía Del Usuario
21-10
User Guide for AsyncOS 9.7 for Cisco Email Security Appliances
Chapter 21 Email Authentication
Configuring DomainKeys and DKIM Signing
z=From:admin@example.come|To:joe@example.com|
Subject:test%20message|Date:Date:August%2026,%202011%205:30:02%20PM%20-0700
Step 13
Enter users (email addresses, hosts, etc.) that will use the domain profile for signing.
Note
When you create domain profiles, be aware that a hierarchy is used in determining the profile to associate
with a particular user. For example, you create a profile for example.com and another profile for
joe@example.com. When mail is sent from joe@example.com, the profile for joe@example.com is
used. However, when mail is sent from adam@example.com, the profile for example.com is used.
with a particular user. For example, you create a profile for example.com and another profile for
joe@example.com. When mail is sent from joe@example.com, the profile for joe@example.com is
used. However, when mail is sent from adam@example.com, the profile for example.com is used.
Step 14
Submit and commit your changes.
Step 15
At this point (if you have not already) you should enable DomainKeys/DKIM signing on an outgoing
mail flow policy (see
mail flow policy (see
Note
If you create both a DomainKeys and DKIM profile, AsyncOS performs both DomainKeys and
DKIM signing on outgoing mail.
DKIM signing on outgoing mail.
Creating or Editing a Signing Key
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•
Create a New Signing Key
Signing keys are required for domain profiles for DomainKeys and DKIM signing.
Procedure
Step 1
Choose Mail Policies > Signing Keys.
Step 2
Click Add Key.
Step 3
Enter a name for the key.
Step 4
Click Generate and select a key size.
Step 5
Submit and commit your changes.
Note
If you have not done so already, you may need to edit your domain profile to assign the key.
Edit an Existing Signing Key
Procedure
Step 1
Choose Mail Policies > Signing Keys.