sendmail logs

[Carlo Orecchia]

I am using the server as an smtp server. It means all clients 
(let's say 192.168.1.20/25) in my lan send mails throughout my server 
(let's say 192.168.1.1) which is obviously directly connetted to internet.
(when i say clients i mean for instance outlook express, not other 
standalone servers).
To let these clients relay I have for any IP an entrance in the access 
like this:

localhost.localdomain RELAY
192.168.1.20 RELAY

Now, what i wonder is why sendmail allows relay even if I remove these 
entries. and only does not allow relay if i remove from hosts the 
hostname i gave to the machine (e.g. 192.168.1.20 lan01)

About this i guess is because if I remove the hostname the ip does not 
resolve so the server does not accept it. So the fact i does 
not relay has nothing to do with the access database or access rules in 
general.

Anyway why if I remove the 192.168.1.20 RELAY line that machine is still 
able to relay?
I obviously run makemap and restart sendmail after having modified access 
file and i don't have relay-domains entries (only localhost)

Thanks PAUL i appreciate your help and i hope i was clear enough

carlo


On Fri, 24 Sep 2004, Paul Howarth wrote:

> Carlo Orecchia wrote:
>> yes i got the same you wrote
>> 
>> i also realized that sendmail allows relay from any host in /etc/hosts no 
>> matter if the host is listed in the access file. is this normal?
>> i mean for all the other hosts (from internet) the relay is not allowed 
>> isn't it?
>
> sendmail does not allow relay from any host in /etc/hosts; it allows relay 
> from any host with a RELAY tag in the access.db, and to any domain listed in 
> /etc/mail/relay-domains
>
> What makes you think it allows relay from any host in /etc/hosts?
>
> Paul.
>
>
>

-- 
Dott. Carlo Orecchia
E-Mail: carlo at numb.darktech.org
Web: http://numb.darktech.org/carlo/