[megaloman]

Код:

@Echo Off

Set "Mail=Z:\Mail"
Set "Lock=parent.lock"

Set "DirFrom=Z:\Box_In"
Set "Spisok="cert_override.txt" "cert8.db""

FOR /D %%d IN ("%Mail%\*.*") DO If Not Exist "%%d\%Lock%" (
	FOR %%f IN (%Spisok%) DO Copy "%DirFrom%\%%f" "%%d\" >nul
)