[84817] in North American Network Operators' Group
Re: 209.68.1.140 (209.68.1.0 /24) blocked by bellsouth.net for SMTP
daemon@ATHENA.MIT.EDU (Tony Finch)
Mon Sep 26 07:18:53 2005
Date: Mon, 26 Sep 2005 12:18:03 +0100
From: Tony Finch <dot@dotat.at>
To: Michael Loftis <mloftis@wgops.com>
Cc: sigma@smx.pair.com, nanog@nanog.org
In-Reply-To: <A3DE112C09AD3E05F8B42036@dhcp-2-206.wgops.com>
Errors-To: owner-nanog@merit.edu
On Sat, 24 Sep 2005, Michael Loftis wrote:
>
> Also just one hacked webform usually results in the same problem (we
> have thousands of web hosting customers). It's in our projects list to
> find 'some way' to rate limit individual senders but it's not a high
> priority right now.
I implemented rate limiting for Exim to address this problem. The feature
is available in version 4.52 and later.
ftp://ftp.csx.cam.ac.uk/pub/software/email/exim/ChangeLogs/NewStuff-4.52
We have a few thousand users who forward email off-site, and it gets the
same anti-spam filtering as locally-delivered email. This seems to be
sufficient to avoid trouble with AOL etc.
Tony.
--
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