luggage – JFK International to Domestic Baggage Drop

My wife and kids are arriving in JFK in a couple of weeks (Air India) and have a flight to Atlanta (Delta). Separate tickets but they have enough connection time.

My question is about baggage. I understand they need to pick up baggage, clear customs and check in again to Delta. I took a similar route a few years back (DXB JFK ATL) and I remember being able to drop bags off at a delta bag drop counter immediately after customs.

Is this still true? Is there a baggage drop off counter after customs before going to the other terminal for security and then to the Delta gate? Or should she take the baggages herself all the way? Which would be a hassle because of small kids.