Sent batch id :- 
Array
(
)

MX — Register mail remaining batch_ids :- 
Array
(
    [0] => 99934410012026051703
)

XP — Register mail remaining batch_ids:- 
Array
(
    [0] => 344569120260524
    [1] => 344569120260531
    [2] => 344569120260614
    [3] => 159914520260614
)