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Cisco IronPort AsyncOS 7.6 for Email Advanced Configuration Guide
OL-25137-01
Chapter 5      Email Authentication
Creating Domain Profiles for DomainKeys Signing
To create a new domain profile for DomainKeys signing:
Step 1
Click Add Profile on the Domain Profiles page. 
Step 2
Enter a name for the profile, and the Domain Key type (DomainKeys). After you select the Domain Keys 
type, the Add Domain Profile page is displayed.
Figure 5-7
Add Domain Profile Page (DomainKeys)
Step 3
Enter the domain name.
Step 4
Enter a selector. Selectors are arbitrary names prepended to the "_domainkey" namespace, used to help 
support multiple concurrent public keys per sending domain. A selector value and length must be legal 
in the DNS namespace and in email headers with the additional provision that they cannot contain a 
semicolon. 
Step 5
Select the canonicalization (no forwarding whitespaces or simple).
Step 6
Select a signing key (If you have already created a signing key, otherwise, skip to the next step). You 
must create (or import) at least one signing key in order to have signing keys to choose from in the list. 
See 
Step 7
Enter users (email addresses, hosts, etc.) that will use the domain profile for signing.
Step 8
Click Submit.
Step 9
Click the Commit Changes button, add an optional comment if necessary, and then click Commit 
Changes
 to finish adding the new domain profile.
Step 10
At this point (if you have not already) you should enable DomainKeys/DKIM signing on an outgoing 
mail flow policy (see 
).
Creating Domain Profiles for DKIM Signing
To create a new domain profile for DKIM signing:
Step 1
Click Add Profile on the Domain Profiles page.