Re: [exim] Blocking a host that is allowed.

* Ernie Dunbar:

> Our outgoing mail server (Debian, Exim 4.69) allows connections from our
> ADSL network with the dc_relay_nets directive in
> /etc/exim4/update-exim4.conf.conf
>
> I have yet to find any way of blocking a particular IP address that exists
> in that range.

You could try to put a ! in there, like this:

!192.0.2.1 : 192.0.2.0/24

This should allow any host s in that /24 except 192.0.2.1 to submit
mail.

You should have a look at README.Debian to check if this is really
supported, though.