[CDBUG-talk] sorbs.net blacklist too aggressive? (fwd)
freebsd at fongaboo.com
Mon Oct 3 13:50:23 EDT 2016
This isn't anything specifically FreeBSD... But just wanted to bounce
(no pun intended) this off you guys to see what you thought...
---------- Forwarded message ----------
Date: Mon, 3 Oct 2016 13:47:28 -0400 (EDT)
From: Fongaboo <postfix at fongaboo.com>
To: postfix-users at postfix.org
Subject: sorbs.net blacklist too aggressive?
I'm running Postfix 2.11.7 on FreeBSD 10.2-RELEASE.
Just wanted to get folks' opinions/rationale/thoughts on behavior of some of
Specifically SORBS.NET... I first set up my server using a popular FreeBSD
tutorial. SORBS.NET was included in a list of recommended RBL's in the latest
incarnation of that tutorial.
But it seemed like every other day I was whitelisting servers of mainstream
providers like Gmail and Facebook. They seem to be... how do I say... extremely
absolutist in their protocol for blacklisting? So at the end of the day it ends
up not being practically useful.
I first tried whitelisting IP blocks as I found problems, but it's been a
constant game of whack-a-mole (or *un*-whack-a-mole, in this context, rather?).
So I finally decided to remove their reject_rbl_client entries in main.cf.
Every issue with misidentified rejections has been due to SORBS. Have others
had similar experiences or different approaches?
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