After an action is executed, there should be a possibility to send an email. The email parameters should include:
To email address (or @jedoxUserName if the user is a jedox user). From/Send email address should use system settings.
Message (should allow HTML for formatting)
Return code / status of executed action
All can be variable.
This could be included in all actions, or there could be a possibility of an "email action". However, having this on all actions would be more powerful as the return code/description of the executed action could be tracked.