On 15 May 2018, at 16:58, for...@mehl-family.fr wrote:
I don't want to configure DNS server on my machine.
That's perfectly fine but it is not relevant.
What you *want* has no effect on what *works*. If you want Postfix to
recognize an IP in RFC1918 private space as having a valid name, you
MUST set up your own DNS server that serves the relevant zone under
in-addr.arpa. This is true whether or not you *want* to configure such a
server.
I use 2 DNS (/etc/resolv.conf) :
- 1.1.1.1
Which will *correctly* reply that 192.168.1.1 has no name, because on
the public Internet, 192.168.1.1 has no name
- 192.168.1.1
Which will never be used as long as 1.1.1.1 responds with reasonable
speed.
