email builder:
> Thanks for the help everyone.? Does anyone have experience
> or comments about this:
> The only other solution I can see is to use something
> like Nginx to just proxy the SMTP conversation through
> the relay to the internal MTA.? I haven't tried this before,
> but if Nginx can perform fast enough and can also be
> DNS load balanced in connecting to internal MTAs, would
> it work?? If the relay is not near the internal MTAs, will
> network latency make this a dubious choice?
>
> As I understand it, the advantage to that setup would be
> that the internal MTAs could be configured as if they were
> public facing themselves.? Yes?
Postfix has the hooks to work with nginx or haproxy. Postfix 2.9
adds supports nxginx's built-in SASL authentication, and Postfix
2.10 adds support for haproxy.
I have no experience with such set-ups, and have no information
about whether they will help under conditions of Postfix overload,
or whether they will make the problem worse.
Wietse
