martin f krafft:
> also sprach Wietse Venema <wie...@porcupine.org> [2011.02.24.1729 +0100]:
> > This week I was doing some expiriments: I configured Postfix to
> > make postscreen listen on both primary AND backup MX addresses.
> > This was a matter of adding a second IP address to the ethernet
> > interface of my mail server, then adding a backup DNS MX record
> > that resolves to that second IP address.
>
> Dear Wietse, dear list,
>
> almost half a year after the above message introducing postscreen
> and the idea of using a low-priority MX on the same host to raise
> the entry barrier for the postscreen whitelist, I would like to ping
> back to the thread with the following question:
>
> Has anyone found out how to make this work in combination with
> a physically-separate secondary MX?
At this time, Postfix supports no suitable database type that can
be shared AND provide the performance level (milliseconds latency)
AND provide the robustness that postscreen requires.
You can get two of the three, but not all of them.
Wietse
