Email communication relating to the establishment of the autoresponse for

Currently waiting for a response from Prime Minister, they should respond promptly and normally no later than (details).

Dear PMO,

I would like to request email communication, during 2020 or 2021, that relates or refers to the establishing or maintenance of the current message that is automatically sent to people who email, '[email address]'. To help you identify the message I am referring to, it includes the text, 'This email is no longer operational and is not monitored.'
Please consider this a formal request under the Act.
Let me know if you need any further clarification.

Kind regards,
Luke Bacon