How to change internet address to local, reverse NAT

Something does not work. I have a rule

chain = dstnat action = netmap to-addresses = 172.16.100.100 to-ports = 80 protocol = tcp in-interface = pppoe dst-port = 80

on microtic for forwarding tcp port 80 to the server, but arrives at an internal server with an external IP, and since the server has a default gateway on another network card, the answer goes through it, but I want the external address to be replaced with the internal one.
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