Hi,
The goal is to design a workflow with a main target and the target to exclude. This target corresponds to recipient from delivery whose the typology is Trigger. In my example, it will be defaultTypology

We need to parameter our query (nom interne de diffusions égal...).
Open it and clic on the button (red square)

Select BroadlogRcp
This table content all recipients having received previously a message

Clic on delivery (red square)

In the delivery schema, open typology and select your criteria (@label...@name)

You obtain your query

Now you can finish your workflow.
It's ok?
Christophe