Since the introduction of the new Send customized email action, it is advised to avoid using the old Send email action as per the anchored part of the Jira automation actions article. However, while the old action allowed using the CC/BCC fields (recipients) in the respective email, the new action doesn't offer such a capability.

Due to several questions raised in the respective announcement, it'd be great if we could also include the CC/BCC fields in the new automation action.