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i have posted my thoughts on unacceptable list access previously and
it sank to the level of a frequent poster denigrating other users
since they took exception to his self-professed role of protecting
list admins in order "to avoid the list admins following bad
advice from people" who might have differing opinions from his own.
hopefully, that will not happen here.<br>
<br>
in re the recent Brazilian Portuguese (note the 'R$' symbol for ISO
BRL rather than Euro) spam: what was wrong with that posting that
should have been caught:<br>
<ul>
<li>the IP of origin 52.165.41.104 is an MS delegation without
rDNS and -- obviously -- no SPF/TXT RR and<br>
</li>
<li>the claimed domain 'cloudapp.net' does not exist in whois (not
a 100% indication of non-existence) or DNS (a 100% 'reject'
indicator).<br>
</li>
</ul>
i have not used mailman for some time, but these two (2) simple
errors would have been blocked by normal 'postscreen' checks and
should never have gotten as far as mailman in any case. checking the
EHLO format is in the µs range and a DNS check should take <
100ms. thus, these types of errors could be quickly and easily
eliminated with a '521' without any RBL or list-serve processing at
all.<br>
<br>
the wider problem case is how non-subscribers are given two-way
access to the list that exposes so much subscriber info (name,
professional affiliation, email addr, ...) to whomever. i cannot
fathom why the list does not make use of aliases so that each
subscriber can control what they want to make public via their alias
profile.<br>
<div class="moz-cite-prefix"><br>
<pre class="moz-signature" cols="80">Thank you,
Johann v. Preußen
</pre>
On 2016.Apr.19 16:40, Oliver Niebuhr wrote:<br>
</div>
<blockquote cite="mid:5716C1D0.6000100@oliverniebuhr.de" type="cite">
<pre wrap="">Am 20.04.2016 um 01:05 schrieb Scott Neugroschl:
</pre>
<blockquote type="cite">
<pre wrap="">Can the spam filters on the listserv be updated? Got two today in
Spanish and Portuguese for monetary scams. Anyone else getting these?
---
Scott Neugroschl | XYPRO Technology Corporation
4100 Guardian Street | Suite 100 |Simi Valley, CA 93063 | Phone 805
583-2874|Fax 805 583-0124 |
</pre>
</blockquote>
<pre wrap="">
Morning.
Yeah I got those too. I think like everyone else who subscribed to that
List and has no specific Filters set up :)
I am an Admin for some Mailman Lists myself - there is no way to block
everything with 100 Percent efficency - except if you disallow
non-members to send Message to $List.
It always depends on the local Mailing List Policy.
Greetings
Oliver
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