Re: [Exim] 2 MTA's on the same host

On Thu, 8 Nov 2001, Tamas TEVESZ wrote:

> On Thu, 8 Nov 2001, Marsh, Ian wrote:
>
> > Can anyone tell me if it is possible to make Exim (listening on port 25)
> > to route *all* mail to another MTA running on the same server but different
> > port (eg 2525)? No mail will be local to the server on which the MTA's are
> > running. I need to 'buffer' mail received from external hosts on the server
> > and then feed it to the second MTA. This MTA can, occasionally, take some
> > time to do it's required processing so I'd like to release the originating
> > MTA as soon as possible, hence buffering it with Exim.
>
> possible. you need to separate everything (spool directories, logs
> [maybe that's not neccessary, but nice to], everything), then
> configure the :25 one to send everything it receives to the other one.
>
> this is achieved by not setting any local_domain (although beware as
> 'localhost' gets added automatically IIRC), and you need only one
> transport that looks similar to this:
>
> driver = smtp
> hosts = 127.0.0.1
> hosts_override
> batch_max = 0
> max_rcpt = 1
> port = 2525
>
> (some of these may not be neccessary; for some reason i used to have
> them so. of course cook a router that will use this transport).
> additionally configure this instance to have sending limits and
> whatnot you want to impose.
>
> now, as for the 'other' exim, you need to specify "local_interfaces =

From what I understood from his message, the 'other' MTA is something
other than exim.

> 127.0.0.1" (so that it only binds to the loopback interface) and also
> tell it to use port 2525, for which i forgot the config option; the
> rest of the cfg should be as you need it to.
>
>
>

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