Stopping backscatter with D_REJECT

[Todd D. Taft]

Oops.  You're right.

So, if I change the master.conf to:

smtp      inet  n       -       n       -       -       smtpd
  -o smtpd_sasl_auth_enable=yes
  -o receive_override_options=no_address_mappings
  -o smtpd_proxy_filter=127.0.0.1:10024
  -o smtpd_tls_security_level=may

do I get the desired result of a pre-filter that rejects all spam and 
viruses with no possibility of backscatter, or is there something else 
I'm missing?

--Todd


On 4/17/17 3:11 PM, Ralf Hildebrandt wrote:
> * Todd D. Taft <taft at unclet.net>:
>
>>> I've got amavisd-new set up to run as a pre-queue test in the postfix's
>>> master.cf:
>>> smtp      inet  n       -       n       -       -       smtpd
>>>   -o smtpd_sasl_auth_enable=yes
>>>   -o receive_override_options=no_address_mappings
>>>   -o content_filter=smtp-amavis:127.0.0.1:10024
>>>   -o smtpd_tls_security_level=may
>>> smtp-amavis  unix  -    -       y       -       2 smtp
>>>   -o smtp_data_done_timeout=1200
>>>   -o disable_dns_lookups=yes
>>>   -o smtp_send_xforward_command=yes
> This is not a pre-queue filter, this is a content_filter!
>

-- 
Todd D. Taft
taft at unclet.net