The alternate Exim instance doesn't have to be an alternate port on the
same IP address. It can be the regular port on a second IP address (with
suitable name in DNS). That may be easier for users to comprehend (set the
SMTP server to authmail.foo.com instead of mail.foo.com).
--John (ports are where ships go when they get near the edge of the water)
At 11:12 -0400 8/18/00, Dave C. wrote:
>My solution for AUTH was to run a second exim daemon, listening on a
>different port. I did this to prevent problems whereby some clients
>force the user to authenticate if AUTH is advertised as being
>available, even if the MTA doesn't require it. The normal exim daemon
>has normal anti-relay rules, and doesn't support AUTH at all. The
>alternate port one *always* requires authentication for any host to
>send mail, and doesn't otherwise care about relaying.
>
>You could set up a similar setup, and leave the DUL stuff out of your
>config for the daemon on the alternate port . Those who you want to
>block by way of DUL aren't likely to be trying any port other than 25..
>
>The only downside to this is getting users to use the alternate port -
>but I figure if they want to be able to send mail from off-network they
>will learn - you have to explain how to setup AUTH anyway, you can take
>care of the different port at the same time. One good thing is that if
>you have travlling users, they can setup for the alternate port and
>AUTH, and it will still work even when they are on your network - they
>dont have to switch the config back and forth..
>
>On Fri, 18 Aug 2000, Maximiliano Kolus wrote:
>
>> Hello!
>>
>> For those not aware, DUL is a RBL-alike dns database that lists
>> dialup pools that shouldnt be sending direct-to-mx mail. It's designed to
>> stop direct-to-mx spam by "forcing" the user to use it's ISP mail server.
>>
>> My problem is that i want to use DUL *and* SMTP AUTH, but i didnt
>> find a way to tell exim "no matter if the IP is on a RBL, if it was
>> authenticated let the mail pass". Can anybody help me?
>>
>> -----------------------
>> Maximiliano Kolus
>> System Engineer - Amtec.net
>>
>> mkolus@???
>> <http://www.amtec.net>
>>
>> Amtec.net - The eBuilder Company of LatinAmerica
>>
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>>
>
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