How are you identifying a scheduled reports from a TST site

Summary:

I would like a way to identify scheduled reports sent from our lower TST environments so that it can be automatically or manually disregarded as not being from Production and am struggling to find an easy path a solution.

We use the Interface Display Name in .NET or a message base for BUI to specify the environment details for our users in the consoles. However, I'm unable to translate this data into a report title or filter.

Turning off the reporting utility in the lower environments is not an option. Adding the "interface.id" as a column in a report, works to some extent where the table dataset allows it.