Re: [exim4] mixed up about terminology
On Mon 06 Oct 2014 at 16:31:52 +1300, Chris Bannister wrote:
> On Sun, Oct 05, 2014 at 11:16:18PM -0400, Harry Putnam wrote:
> >
> > So they would all be sending mail by way of server host.
> >
> > I guess that is not what is meant by relaying?
>
> Good point. Just to be pedantic all MTAs act as relays, but I think the
> term being talked about is "open relay" IOW it's "open" for anybody to
> use, spammers, guy next door etc. etc.
Note that the OP is going to have something like 192.168.2.0/24 for
dc_relay_nets. Even if exim was listening on an external interface (an
empty dc_local_interfaces) exim is not set up to relay mail due to a
connection on this interface.
And then we have the bedtime stories to frighten the children: hordes of
attempts to relay through a mail server. Like this one:
2014-10-06 07:19:44 H=114-43-21-85.dynamic.hinet.net (80.177.21.246) [114.43.21.85] F=<sdf2123@hotmail.com> rejected RCPT <sanjinn02@yahoo.com.tw>: relay not permitted
2014-10-06 07:19:45 unexpected disconnection while reading SMTP command from 114-43-21-85.dynamic.hinet.net (80.177.21.246) [114.43.21.85]
There is more chance of the 0's and 1's of my exim binary spontaneously
disassociating and reassembling into a copy of postfix than one of these
getting through.
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