James Feeney:
> As described in the original post, setting the inet_interfaces
> parameter to "<network_namespace_interface_IP_address>" results
> in postfix sendmail failing with "fatal: parameter inet_interfaces:
> no local interface found for <network_namespace_interface_IP_address>"
> when postfix is running "inside" a network namespace, and postfix
> sendmail is run from "outside" the network namespace. This appears
> to be a consequence of postfix sendmail actually running "postfix
> start" from "outside" the network namespace, which is going to
> fail.
Running different parts of Postfix in different namespaces is not
supported, period. Don't ask for support to do that.
What is supported is that you run Postfix in one network namespace
and use a mini sendmail program in a different namespace to submit
email to Postfix over SMTP. 'mini sendmail' is a search term that
should get you going.
> Regarding "proxy_interfaces", in what way is the "Remote IP
> address" useful to postfix? How is there a problem, and what is
> the problem, when postfix does *not* know the "Remote IP address"?
Postfix needs to know ALL IP addresses that OTHER systems can use to
connect to Postfix, primarily to avoid mail delivery loops.
Wietse
