Do you have an Apple IP range list? - I didn't check it still, but according to a simple search in Google I got an answer like "Apple's primary IP address range is the entire /8 block, which is 17.0.0.0/8" How do you know it won't change at some point in the future though. - I don't know, I hoped somebody from the Apple team can answer it.

Hi, I just checked and IP whitelisting also won't work in this case

Whitelisting Apple IP also doesn't work, since original IP it is the address assigned by the mobile carrier (e.g., AT&T, Vodafone).

Whitelisting Apple IP also doesn't work, since original IP it is the address assigned by the mobile carrier (e.g., AT&T, Vodafone).