Short answer: Drop the "Postmark → Postmark Get Delivery Stats" action anywhere in your workflow, map the inputs from upstream nodes, and publish.
{}
{"Bounces": [{"Name": "Hard bounce","Type": "HardBounce","Count": 5},{"Name": "Soft bounce","Type": "SoftBounce","Count": 3}],"InactiveMails": 10}
Use these fields in downstream nodes for routing, logging, or error handling.
Any of these apps can fire this action as part of a workflow.
Triggered by anything in the catalog. Free tier available. No credit card.