2014/10/06 12:16 "Harry Putnam" <reader@newsguy.com>:
>
> Jerry Stuckle <jstuckle@attglobal.net> writes:
>
> > The first question - why do you think you need to relay to other
> > networks, even if they're your own? Do you have other SMTP servers
> > running on those networks?
>
> Good question and apparently thee is no reason. It stemmed from a deep
> seated confusion about what relaying means. All I really want is to
> be able to do this:
>
> On my lan machines:
>
> HOST-1
> HOST-2
> [...]
> HOST-mail-server now being configured
>
> HOST-[12...N] would have the server host above listed as smarthost in
> there respective mail config.
>
> So they would all be sending mail by way of server host.
>
> I guess that is not what is meant by relaying?
I think that's relaying, but not open relay (if you get it set up right).
But you should consider why you want to send out through a central server, unless your firewall is for some reason set up to only allow outbound mail from that server, in which case you probably do want to authenticate on the lan, too. (Think, for example, about the possibility of malware on a local box.)
Incoming mail may make sense to cache on a local server. Or maybe not.
Joel Rees
Computer memory is just fancy paper,
CPUs just fancy pens.
All is a stream of text
flowing from the past into the future.