[prev in list] [next in list] [prev in thread] [next in thread] 

List:       postfix-users
Subject:    Re: Suggestions for less spam
From:       Dominic Raferd <dominic () timedicer ! co ! uk>
Date:       2019-09-24 11:12:12
Message-ID: CAF9Mo3KzmrGe_KOV1g6zwJmHgFj8gWSO4pz7t9ieApkqEiPv6A () mail ! gmail ! com
[Download RAW message or body]

On Tue, 24 Sep 2019 at 12:09, Wietse Venema <wietse@porcupine.org> wrote:

> Dominic Raferd:
> > On Tue, 24 Sep 2019 at 11:31, Matus UHLAR - fantomas <uhlar@fantomas.sk>
> > wrote:
> >
> > > On 24.09.19 12:11, Paul van der Vlis wrote:
> > > >I am using now much of your setting and it seems to help. Thanks a
> lot!
> > >
> > > I would just like to note that all those reject_rbl_client directives
> are
> > > prone to errors when any of those blacklist fails.
> >
> >
> > An occasional individual blacklist lookup failure is not a problem, and
> is
> > rare (except for b.barracudacentral.org). I have not felt the need for
> > postscreen but of course it is a good tool: I prefer to block by ip last
> > and to log helo, envelope sender & recipient as well as client ip. This
> > puts a little more load on the server, but information is power.
>
> Postscreen logs the helo, sender, recipient, client IP address
> and client port when it rejects a connection.
>

Thanks - I did not know that, I thought postscreen blocked at early stage
before this information had been requested/received. My bad.

[Attachment #3 (text/html)]

<div dir="ltr"><div dir="ltr"><div class="gmail_default" \
style="font-size:small"><br></div></div><br><div class="gmail_quote"><div dir="ltr" \
class="gmail_attr">On Tue, 24 Sep 2019 at 12:09, Wietse Venema &lt;<a \
href="mailto:wietse@porcupine.org">wietse@porcupine.org</a>&gt; \
wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px \
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Dominic Raferd:<br> \
&gt; On Tue, 24 Sep 2019 at 11:31, Matus UHLAR - fantomas &lt;<a \
href="mailto:uhlar@fantomas.sk" target="_blank">uhlar@fantomas.sk</a>&gt;<br> &gt; \
wrote:<br> &gt; <br>
&gt; &gt; On 24.09.19 12:11, Paul van der Vlis wrote:<br>
&gt; &gt; &gt;I am using now much of your setting and it seems to help. Thanks a \
lot!<br> &gt; &gt;<br>
&gt; &gt; I would just like to note that all those reject_rbl_client directives \
are<br> &gt; &gt; prone to errors when any of those blacklist fails.<br>
&gt; <br>
&gt; <br>
&gt; An occasional individual blacklist lookup failure is not a problem, and is<br>
&gt; rare (except for <a href="http://b.barracudacentral.org" rel="noreferrer" \
target="_blank">b.barracudacentral.org</a>). I have not felt the need for<br> &gt; \
postscreen but of course it is a good tool: I prefer to block by ip last<br> &gt; and \
to log helo, envelope sender &amp; recipient as well as client ip. This<br> &gt; puts \
a little more load on the server, but information is power.<br> <br>
Postscreen logs the helo, sender, recipient, client IP address<br>
and client port when it rejects a connection.<br></blockquote><div><br></div><div \
style="font-size:small" class="gmail_default">Thanks - I did not know that, I thought \
postscreen blocked at early stage before this information had been \
requested/received. My bad.<br></div></div></div>



[prev in list] [next in list] [prev in thread] [next in thread]