Hi all. I'd like to usr some OnePass miles for the following flights--is this combo allowed?

Outbound: NYC - ATL - Mexico (on DL with 1 connection in ATL)
Return: Mexico - ATL (on DL) then connect to ATL - EWR (on CO)

Should be 35K miles roundtrip.

DL has no award seats from ATL-NYC on my return date.

Thanks.