taRgrey - S25R + tarpitting + greylisting (tarpit + greylist policy server)

hi,
is there any plane to include this patch in the upstream
postgrey?
http://k
2net.hakuba.jp/targrey/index.en.html
thanks.

-- 
  Levente                               "Si vis pacem
para bellum!"

-- 
Unsubscribe mailto:postgrey-requestlist.ee.ethz.ch?subject=unsubscribe
Archive     http://lists.ee.ethz
.ch/postgrey
WebAdmin    http://lists.ee.ethz
.ch/lsg2.cgi

On Tue, Nov 06, 2007 at 23:55:57 +0100, Farkas Levente
wrote:
> hi,
> is there any plane to include this patch in the
upstream postgrey?
> http://k
2net.hakuba.jp/targrey/index.en.html
> thanks.

Not currently. Doing tarpitting with Postfix is potentially
dangerous
(you end up using all of your smtpd processes) and I rather
leave it
for people that know what they are doing (and also know how
to apply a
patch).

Cheers
David

-- 
Unsubscribe mailto:postgrey-requestlist.ee.ethz.ch?subject=unsubscribe
Archive     http://lists.ee.ethz
.ch/postgrey
WebAdmin    http://lists.ee.ethz
.ch/lsg2.cgi

>>>>> On 07 Nov 2007 at 12:35 "DS"
== David Schweikert writes:

>> is there any plane to include this patch in the
upstream postgrey?
>> http://k
2net.hakuba.jp/targrey/index.en.html
>> thanks.

 DS> Not currently. Doing tarpitting with Postfix is
potentially dangerous
 DS> (you end up using all of your smtpd processes) and I
rather leave it
 DS> for people that know what they are doing (and also
know how to apply a
 DS> patch).

You can apply this patch, but do not turn on tarpitting by
default 

-- 
vvk

-- 
Unsubscribe mailto:postgrey-requestlist.ee.ethz.ch?subject=unsubscribe
Archive     http://lists.ee.ethz
.ch/postgrey
WebAdmin    http://lists.ee.ethz
.ch/lsg2.cgi

On Dienstag, 6. November 2007 23:55 Farkas Levente wrote:
> is there any plane to include this patch in the
upstream postgrey?
> http://k
2net.hakuba.jp/targrey/index.en.html
I can report that we have this patch in use since summer,
having no pain 
with it but a lot less greylisting problem reports since
then. Lots of 
east european bigger ISPs use SMTP servers that always
resend from 
switching IPs, making greylisting painful, but they seem to
handle 
tarpitting correctly.
I do not have any stats on how many zombies pass tarpitting
easier (or 
not at all) though, but from our graphs there's no sign of
more (or 
less) spam passing through, it seems to be equally good.
Tarpitting is much better when we get a new customer, as the
initial 
greylisting delay is not there, which made customers quite
some stress 
as they seemed to receive no more e-mail. A lot of people
seem to be on 
the telephone with someone sending "a quick mail",
while the other is 
waiting. The 60 second tarpitting delay is no problem, while

greylisting is.

The potential eating of postfix processes David mentioned
comes from 
tarpitting sessions waiting the 60 seconds and blocking the
process 
during this time. If your mailserver has enough sessions
available to 
handle that, try the patch and be happy.

mfg zmi
-- 
// Michael Monnerie, Ing.BSc    -----      http://it-management.at
// Tel: 0676/846 914 666                     
.network.your.ideas.
// PGP Key:         "curl -s http://zmi.at/zmi.asc | gpg
--import"
// Fingerprint: EA39 8918 EDFF 0A68 ACFB  11B7 BA2D 060F
1C6F E6B0
// Keyserver: www.keyserver.net                   Key-ID:
1C6FE6B0

-- Binary/unsupported file stripped by Ecartis --
-- Err : No filename to use for decode, file stripped.
-- Type: application/pgp-signature


-- 
Unsubscribe mailto:postgrey-requestlist.ee.ethz.ch?subject=unsubscribe
Archive     http://lists.ee.ethz
.ch/postgrey
WebAdmin    http://lists.ee.ethz
.ch/lsg2.cgi