When using many Automations and the "External Action - Send email" you do not want to input the e-mail server settings all over again for each workspace.
Right now you can load a template (from Gmail, Outlook, Office, Yahoo) - however you should also be able to link to "Use FME Server System Email settings". Since you have already defined this under "Admin-System Configuration-Network&Email-System Email" . So whenever you need to update these credentials you can change it one place, and all the automations will be updated because they are LINKED (not copied).
Or have I missed how to do this in FME:23 ?