On 2010-05-04 Appliantologist wrote:
> I had a situation where some of my users had compromised machines and
> someone is brazil and indiawere able to authorize themselves to use
> sendmail using the login then send scenario. Recently we changed
> hosting and set up postfix. In addition we decided to eliminate any
> access to our system buy email users, instead we asked them all to go
> open gmail accounts and put the corresponding address in the virtual
> file.
> 
> Now it seems the spammers are back with a vengance and still able to
> send spam. I set up the rules suggested but it seems they are simply
> using email that exist. I was hoping someone could point me to a
> solution.
> 
> 
> I would like to set up postfix so that:
> 
> It only accepts mail generated by the scripts on the server
> and
> It only accepts mail to a predefined list of email address
> 
> I tried to make a CIDR file with most of the 3rd world in it, some
> 30,000 ips but for some reason it doesn't seem to have the effect I
> was hoping for.
> Any ideas would be helpful, thanks.David

Please post a log excerpt of one full (spam) mail transaction from
submission to delivery to demonstrate the issue. Also post the output of
"postconf -n".

Regards
Ansgar Wiechers
-- 
"Abstractions save us time working, but they don't save us time learning."
--Joel Spolsky

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