IFTTT free-tier webhook trigger limit enforcement behavior

I need to confirm how IFTTT enforces the documented webhook trigger limit of 10 calls per minute per applet on free accounts. Specifically, I want to know whether calls above that threshold are delayed until the next minute, dropped immediately, or queued for later delivery.

The public documentation describes the cap but does not state the enforcement window or the fate of excess payloads. Applet execution logs show whether a trigger fired, but they do not explain missing calls. This matters for designs that rely on near-real-time webhook events from external services.

• Does IFTTT apply the 10-call-per-minute webhook limit as a rolling window or a fixed calendar minute?
• Are webhook calls above the limit rejected with an HTTP error, silently dropped, or delayed for later processing?
• Does the limit count per applet, per connected service, or per account?