On 23.11.2006, at 16:09, Ariën Huisken wrote:
> [snip]
>> If you describe your setup and needs for us, a better advice might
>> surface :)
>
> Yeah, it's a bit confusing, I know. I'll try to explain it.
...
>
> So, I could simply remove the first MX in the DNS but that leaves port
> 25 on the customers server unfiltered. The guy who is the admin of
> this server has no clue how to enable only traffic from my server and
> has no firewall to control this. I simply wanted to give him a
> suggestion how set this in postfix on his side.
1. LART the user running admin mode in his brain.
2. 0wn his server,
3. install
/etc/postfix/main.cf
smtpd_recipient_restrictions =
....
check_client_access dbm:/etc/postfix/client_checks
...
/etc/postfix/client_checks
example2.tld OK
* REJECT
this is just the idea what is coming to my mind, taken from the fine
examples at:
http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt
since I've had the same L-user running through my life quite often.
and you're fixed.
and if the other guy hits the bus, you'll still safe and sure
everything is smooth :)
matthias
>
> Ariën
>
>
>
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