On Thursday 21 August 2003 11:54 am, Bill wrote:
> I am getting a ton of emails that are infected with the latest virus. I am
> running Mailscanner to scan incomming email before it hits any of my
> workstations. So the files are not getting past my server. It does though
> fil up my quarentine directory on the server. These infected emails comne
> from the same server all the time. I have looked high and low to find a way
> to contact the admin for the email server but cant seem to find anyone. The
> whois database shows an email addy that is out of date as I got my email
> returned. I shouldnt have to spen my money on a phone call to get this
> taken care of. If anything I would like them to just filter my email addy
> so that nothing from the server goes to me. Maybe someone here knows a
> better way to stop these idiots.

see http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt
Relevant section reads:

/etc/postfix/sender_checks:
/etc/postfix/client_checks:

    # These files have to be "compiled" with "postmap"

    # Using a domain name
    example.tld                 554 Spam not tolerated here

    # Maybe example2.tld is on a DNSbl, but we want to let their
    # email in anyway.
    example2.tld                OK

    # Checking by IP address (you'd only do this in client_checks)
    # 10.0.0.0/8
    10                          554 Go away!

    # 172.16/16
    172.16                      554 Bugger off!

    # 192.168.4/24 is bad, but 192.168.4.128 is okay
    192.168.4.128               OK
    192.168.4                   554 Take a hike!


Entry would be:

 # Checking by IP address (you'd only do this in client_checks)
    # 66.143.23.249/24
    66.143.23.1/24                              554 Enough with the MS viruses 
already, clean your 
house!

-- 
Bryan Phinney
Software Test Engineer


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