You can put IP addresses or networks in host_accept_relay - they don't
have to be host names. If you are accepting based on IP address, make
sure the IP addresses are listed BEFORE any items which are host
names.. Once exim hits a hostname, it has to do a reverse lookup, and
if it fails it rejects without going any further.
Personally, I would stick with IP addresses in a POP-before-SMTP
approach anyway. Have your POP daemon always save the numeric IP
addresses of successfuly auths, and use those in host_accept_relay.
This saves tons of DNS lookups too, so everything might go faster..
Alternatively, if your clients are using relatively new POP clients,
you might want to look into setting up AUTH-SMTP...
On Sat, 5 Aug 2000, Andrew wrote:
> hi there,
>
> Thanx phil btw excellent support for an excellent mta as usual :)
> I now have another problem and I've looked every where and I can't seem to
> find an answer
> is there anyway that a unreversable ip can be used in host_accept_relay
> we have some corporate customers that use diff isp around the place (not
> just localy) that don't have reverses on their ips. I have tried
> +warn_unknown which of course doesn't work as it lets all through :(
> TIA
> cya
> Andrew
>
>
> --
> When everything's coming your way, you're in the wrong lane.
>
>
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