[165711] in North American Network Operators' Group
Re: The block message is 521 DNSRBL: Blocked for abuse
daemon@ATHENA.MIT.EDU (Rich Kulawiec)
Thu Sep 19 11:21:45 2013
Date: Thu, 19 Sep 2013 11:21:10 -0400
From: Rich Kulawiec <rsk@gsp.org>
To: nanog@nanog.org
In-Reply-To: <CAARvpT++CJtN89cHUouYi6o-kF96aBdziQePsBPp=FKFbaGi+g@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Wed, Sep 18, 2013 at 11:59:13AM -0500, John LeCoque wrote:
> I would say the first step is to find an immediate workaround for your end
> users - maybe bring up a VM on AWS or some other cloud provider to use as
> an SMTP relay while you work out the blacklist issue.
Not a good idea. It's a best practice to refuse *all* email traffic
out of Amazon's cloud because (a) it's a prodigous source of spam and
other forms of abuse and (b) Amazon absolutely refuses to lift a finger
to address the problem. (Just try submitting an abuse report and notice
all the hoop-jumping they've put in the way in a quite obvious, deliberate
attempt to make it as difficult as possible.)
---rsk
