dst-nat send private ip

Hello All,

I am trying to dst-nat from 139.1.2.3 to 10.1.2.3 .. but the receiver says they receive my private ip 10.1.2.3..
could any body please help ..what I missed?

I tried dst-nat or netmap still no luck
many thanks in advance

Post your firewall config so that we can actually see what is going on where. The most important part is from /ip firewall nat - but /ip firewall filter is interesting as well.
As a blind guess I would say your masquerade rule is defined too ambiguous (i.e. no src-/dst-addresses and/or no out-interface defined) so that everything is masqueraded.
-Chris