On Mon, Aug 01, 2022 at 01:36:17PM -0400, post...@ptld.com wrote:
> 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 =
Postfix sees two non-loopback interfaces, notions of "public IP" and
"private IP" are not relevant.
> 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
>
> Is the second interface with the private IP being considered?
See above.
> With the above config is there a risk of postfix trying to use the
> 192.168.x.x (or IPv6 equivalent) for outbound connections?
Only if your routing table is messed up.
> Should the bind addresses be specified when using a private network on
> second interface?
Generally no.
--
Viktor.
