From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Laursen Date: Tue, 19 Oct 2010 10:00:51 +0000 Subject: Re: [mlmmj] message probes Message-Id: <4CBD6C53.6060109@borderworlds.dk> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: mlmmj@mlmmj.org On 10/19/10 11:39, Mads Martin J=F8rgensen wrote: > On Tue, Oct 19, 2010 at 11:28 AM, Florian Effenberger = wrote: >> some people complain, that from time to time they receive message >> probes ("The messages X, Y and Z could not be delivered to you"). >> Under which conditions are they sent? Only with 5xx SMTP errors, or >> also with 4xx SMTP errors? > > If the mailserver gets a 4xx reply, it doesn't bounce the mail at > first, but keeps trying. So mlmmj wont see those before the smtpd > gives up. What it could be is that when some services bounce spam > instead of rejecting on smtp level, they bounce it (correctly) to the > envelope from. And any mail coming in to an mlmmj bounce address will > be added to the probe queue. Go have a look in the list archive > directory, and see if any of those numbers is not indeed spam. I have also seen from time to time, that people forward their mail to=20 two accounts. One of them is the one they actually use which works fine=20 and the other one bounces mails sent to it. That setup will ensure them a lot of bounce probes. :) --=20 Christian Laursen