post...@ptld.com:
> Just to clarify my understanding:
>
> On a server with two network interfaces, the first interface has one public
> IP, the seconds interface has one private (192.168.x.x) IP.
>
> inet_interfaces = all
> inet_protocols = all
> #smtp_bind_address =
> #smtp_bind_address6 =
>
> With the following configuration it binds as such
>
> tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 21067/master
> tcp6 0 0 :::25 :::* LISTEN 21067/master
>
> The docs say
>
> when inet_interfaces specifies no more than one IPv4 address,
> and that address is a non-loopback address, it is automatically
> used as the smtp_bind_address
That text was written before IPv6 wsupport was added. There should be similar
text for IPv6.
Wietse
> Is the second interface with the private IP being considered? With the above
> config is there a risk of postfix trying to use the 192.168.x.x (or IPv6
> equivalent) for outbound connections? Should the bind addresses be specified
> when using a private network on second interface?
>
