Editing a DKIM signing rule
Click the name of the rule in the DKIM Signing table to edit the sender domains/ subdomains or signing domain for the rule, or to make changes to the granular sender/ recipient options.
For more information on the configuration options for DKIM signing, see Adding a DKIM signing rule.
To delete a rule, click the rule name in the DKIM Signing table to open the Edit DKIM Signing Rule page. Click Delete to remove the rule.