they never occur second time.
-Original Message-
From: James B. Byrne [mailto:byrn...@harte-lyne.ca]
Sent: Wednesday, May 28, 2014 12:14 AM
To: Marius Gologan
Cc: postfix-users-dig...@cloud9.net
Subject: RE: Milter to block registrars
On Tue, May 27, 2014 16:26, Marius Gologan wrote:
>
&
* James B. Byrne :
> Without going into a lot of detail and without naming names I wish to know if,
> at the time of connection to Postfix, there exists any feasible means of
> determining the registrar used by the connecting domain? As well, I would
> like to know is there any practical means of
Given the situation, perhaps you could set up a resolver that blocks, or
that's behind a packet filter that blocks, the IPs of the name servers
they're using. That would catch it at the NS lookup, and would be no extra
traffic, unlike whois.
On Tue, May 27, 2014 16:26, Marius Gologan wrote:
>
> Whois should definitely not be implemented in automated systems - read ToS
> of RIPE, ARIN, LACNIC etc.
> A special-made milter that will dig for details during the connection time
> is not applicable.
> A secondary benefit of greylist is IP ro
On 05/27/2014 11:33 PM, James B. Byrne wrote:
On Tue, May 27, 2014 15:32, Bennett Todd wrote:
>Two thoughts.
>
>I've received legitimate email from a registrar where I was listed as a
>contact for a domain. If no one uses an email address in your domain to
>register, that's not a problem.
Well y
On Tue, May 27, 2014 15:32, Bennett Todd wrote:
> Two thoughts.
>
> I've received legitimate email from a registrar where I was listed as a
> contact for a domain. If no one uses an email address in your domain to
> register, that's not a problem.
I am attempting to be circumspect with respect to
Whois should definitely not be implemented in automated systems - read ToS
of RIPE, ARIN, LACNIC etc.
A special-made milter that will dig for details during the connection time
is not applicable.
A secondary benefit of greylist is IP rotation. That will provide you an
insight about some networks ,
Am 27.05.2014 21:19, schrieb James B. Byrne:
> Without going into a lot of detail and without naming names I wish to know if,
> at the time of connection to Postfix, there exists any feasible means of
> determining the registrar used by the connecting domain? As well, I would
> like to know is the
On 27 May 2014, at 13:19 , James B. Byrne wrote:
> Without going into a lot of detail and without naming names I wish to know if,
> at the time of connection to Postfix, there exists any feasible means of
> determining the registrar used by the connecting domain?
Not really.
Even if you wrote
James B. Byrne:
> Without going into a lot of detail and without naming names I wish to know if,
> at the time of connection to Postfix, there exists any feasible means of
> determining the registrar used by the connecting domain? As well, I would
Beware, some whois servers enforce rate limits, s
Two thoughts.
I've received legitimate email from a registrar where I was listed as a contact
for a domain. If no one uses an email address in your domain to register,
that's not a problem.
And second, whois is the way I query to find out about a domain, answers to
questions like who registe
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