Debian 10.1, iptables and DNAT not working

[rabbagast]

Mail seem to work OK also.

But on one of the NICs there is a wireless router. It is not possible to access anything from a laptop using the wireless router. Can not see any reason for it. Access from workstations that is wired connected work fine.

[p.H]

I doubt anyone can help you with so little information.

[rabbagast]

No. But I saw what the problem was when I woke up in the morning. And it turned out to be the correct solution.

Again - thanks to all help I have got on this issue