Server-wide DKIM record for multiple domains.
Ability to generate one server-wide DKIM record for multiple domains to sign all domains on the server.
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Thank you for your suggestion. We will consider this functionality in upcoming releases if it is popular. Everyone, please continue voting for this feature if you consider it important.
-- KvD
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Plesk Tech Support
    
 commented
    
  The customer would need to create a dkim for one domain and use it to sign emails for other domains as well.
Similar to how dkim works with opendkim, where it is possible to create a universal key for all domains.