Re: [exim] exim as a load balancer

Chump Chumpster wrote:

> I wonder if this might be possible with Exim?
>
> When we send out a newsletter to our subscribers, it tends to slow down our
> regular email from clients on our domain. I have other stand alone servers I
> could use as MTAs to share the burden when there's a spike in demand. Due to
> the constraints of our newsletter software and other infrastructure, what
> I'd like to do is this:
>
> Is it possible to have one Exim be the single MTA that the newsletter
> software talks to and have this server then act as a 'load balancer' or at
> least a 'round robin', by relaying to 3 other servers that do the actual
> delivery?
>
> I'd appreciate if anyone knows if this is possible.
>
> thanks....
>
> PS. I really do need to do it this way if possible, due to some other
> constraints.

Use a manualroute router as described on
http://www.exim.org/exim-html-current/doc/html/spec_html/ch20.html

Use the hosts_randomize option to spread the load across the three servers.

--
Mike Cardwell
(https://secure.grepular.com/) (http://perlcv.com/)