default_rbl_reply to silently discard mails

2011-04-15 Thread Ram 

Hi,

How can I configure postfix to silently discard mails from ips listed in 
a DNS blacklist



default_rbl_reply=DISCARD
does not work ( Obviously I made this up .. that was not documented 
anywhere :-) )




Thanks
Ram

Re: default_rbl_reply to silently discard mails

2011-04-15 Thread Ralf Hildebrandt 
* Ram r...@netcore.co.in:
 Hi,
 
 How can I configure postfix to silently discard mails from ips listed
 in a DNS blacklist

You can't. Just reject them, its the most efficient method (in terms
of traffic)

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebra...@charite.de | http://www.charite.de

Re: default_rbl_reply to silently discard mails

2011-04-15 Thread /dev/rob0 
On Fri, Apr 15, 2011 at 07:59:17PM +0530, Ram wrote:
 How can I configure postfix to silently discard mails from ips 
 listed in a DNS blacklist

Why do you want to do this? What problem will it solve, and what 
benefit do you expect to see from doing this? I think it sounds 
terrible.

 default_rbl_reply=DISCARD
 does not work ( Obviously I made this up .. that was not
 documented anywhere :-) )

As you [probably] know, there is no discard_rbl_client restriction 
feature. A workaround, if the idea is not as crazy as it appears to 
be, would be a policy server to do the lookup and return DISCARD.
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Offlist mail to this address is discarded unless
/dev/rob0 or not-spam is in Subject: header

Re: default_rbl_reply to silently discard mails

2011-04-15 Thread Reindl Harald 

Am 15.04.2011 16:29, schrieb Ram:

 How can I configure postfix to silently discard mails from ips 
 listed in a DNS blacklist

i hope your mailserver is private only because this idea disqualifies
you as server administrator!

why?

nobody would be able to find troubles if this would be possible
and tharere would be hosts in the real world which does such really
bad things

if i am on a blacklist i like to know that to find out why
if my customers are sending mails they expect they are delviered
or bounced and not silently eaten somewhere





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