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<div class="moz-cite-prefix">Jose,<br>
<br>
Have you defined this in your config.h before your compiled jnos?<br>
<br>
#define SMTP_DENY_RELAY /* Refuse to relay msgs from hosts not in
our subnets */<br>
<br>
After that you can enable relay for a subnet if you need it, like
this for example...<br>
<br>
smtp relay add 44.123.99.1 0xffffff00<br>
<br>
<br>
There is also a file called "refile" what is located in the jnos
spool directory what you can<br>
use to filter email based on the "From:" addresses.<br>
I will give you a couple of examples:<br>
<br>
*@financier.com|*@* refuse<br>
<a class="moz-txt-link-abbreviated" href="mailto:warbelventas@warbel.com.ar">warbelventas@warbel.com.ar</a>|*@* refuse<br>
<a class="moz-txt-link-abbreviated" href="mailto:h*lampe@chello.nl">h*lampe@chello.nl</a>|*@* refuse<br>
*@astroexpo.com@*|* hold<br>
<a class="moz-txt-link-abbreviated" href="mailto:printz9@1st.net">printz9@1st.net</a>|ve3tok@* refuse<br>
<br>
See also the docs.<br>
<br>
But again as already said by others, let Linux do the filtering.<br>
<br>
This is of course a lot of work to setup and maintain.<br>
Be also aware that spam filtering can cause a (very) high<br>
CPU load on your computer, etc.<br>
<br>
<br>
<br>
Bob VE3TOK<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
On 14-03-19 03:27 PM, Jose Ng Lee wrote:<br>
</div>
<blockquote
cite="mid:48074B0A594647769B299A016F9A8A67@HOLLYWOOD.HOLLYWOOD.COM"
type="cite">
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<div><font face="Arial">Thanks for the recommendations Michael.</font></div>
<div> </div>
<div><font face="Arial">I have shorewall firewall block port 25
for two days and Jnos was good and no crash. Today, I tried
open port 25 and monitored TUN0 with tcpdump. The smtp
mail spam just keep flowing and my Jnos is accepting those
spam mail for relay and crashing.</font></div>
<div> </div>
<div><font face="Arial">As I understood, by default Jnos Deny
Relay. I tried the commands "smtp deny relay" and "stmp relay
deny" but not accepted.</font></div>
<div> </div>
<div><font face="Arial">Still trying to find out why Jnos is
accepting those e-mail instead of denying relay. Before, I
don't have in Rewrite a specific define and all the spam
e-mails accumulated in mqueue. Now, in Rewrite everything
that is not defined is put in check. So, the check.txt file
is growing larger (later delete) but at least is not smtp for
delivered out.</font></div>
<div> </div>
<div><font face="Arial">José / HP2AT</font></div>
<div><font face="Arial"> </font></div>
<blockquote style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT:
5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir="ltr">
<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color:
black"><b>From:</b> <a moz-do-not-send="true"
title="n6mef@mefox.org" href="mailto:n6mef@mefox.org">Michael
E Fox - N6MEF</a> </div>
<div style="FONT: 10pt arial"><b>To:</b> <a
moz-do-not-send="true" title="hp2cwb@cwpanama.net"
href="mailto:hp2cwb@cwpanama.net">Jose Ng Lee</a> ; <a
moz-do-not-send="true" title="nos-bbs@tapr.org"
href="mailto:nos-bbs@tapr.org">'TAPR xNOS Mailing List'</a>
</div>
<div style="FONT: 10pt arial"><b>Sent:</b> Monday, March 17,
2014 2:51 PM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> Re: [nos-bbs] How
to avoid SMTP spam mail in mqueue</div>
<div><br>
</div>
<div>For the greatest protection, run all email through your
separate mail server. This includes:</div>
<div>-- inbound connections from Internet hosts to your public I
address,</div>
<div>-- inbound connections from Internet hosts to your 44.x
address via tunnel from the AMPRnet gateway, and</div>
<div>-- inbound connections from other 44.x machines to your
44.x address via tunnels</div>
<div><br>
</div>
<div>M</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div style="COLOR: #575757; FONT-SIZE: 9px">Sent from my
Verizon Wireless 4G LTE smartphone</div>
</div>
<br>
<br>
-------- Original message --------<br>
From: Jose Ng Lee <hp2cwb@cwpanama.net><br>
Date:03/17/2014 8:39 AM (GMT-08:00) <br>
To: Michael E Fox - N6MEF <n6mef@mefox.org>,'TAPR xNOS
Mailing List' <nos-bbs@tapr.org><br>
Subject: Re: [nos-bbs] How to avoid SMTP spam mail in
mqueue <br>
<br>
<div><font face="Arial" size="2">Thanks Michael for the
tips on how to protect my Jnos.</font></div>
<div> </div>
<div><font face="Arial" size="2">I could block SMTP (port
25) on the Firewall for inbound mails to TUN0, but
does that block also the good mail 44 route coming
fron encap?</font></div>
<div> </div>
<div><font face="Arial" size="2">I trying to figure out
why my Jnos accepted all those incoming spam mail. It
should have issue an SMTP DENY and not accepted those
emails. Maybe, there is a script somewhere on my
CentOS machine allowing the entrace. So will keep
looking.</font></div>
<div> </div>
<div><font face="Arial" size="2">José / HP2AT</font></div>
<div> </div>
<blockquote style="BORDER-LEFT: #000000 2px solid;
PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px;
MARGIN-RIGHT: 0px" dir="ltr">
<div style="FONT: 10pt arial">----- Original Message
----- </div>
<div style="FONT: 10pt arial; BACKGROUND: #e4e4e4;
font-color: black"><b>From:</b> <a
moz-do-not-send="true" title="n6mef@mefox.org"
href="mailto:n6mef@mefox.org">Michael E Fox - N6MEF</a>
</div>
<div style="FONT: 10pt arial"><b>To:</b> <a
moz-do-not-send="true" title="hp2cwb@cwpanama.net"
href="mailto:hp2cwb@cwpanama.net">'Jose Ng Lee'</a>
; <a moz-do-not-send="true" title="nos-bbs@tapr.org"
href="mailto:nos-bbs@tapr.org">'TAPR xNOS Mailing
List'</a> </div>
<div style="FONT: 10pt arial"><b>Sent:</b> Monday, March
17, 2014 8:28 AM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> RE:
[nos-bbs] How to avoid SMTP spam mail in mqueue</div>
<div><br>
</div>
<div class="WordSection1">
<p class="MsoNormal"><span style="FONT-FAMILY:
'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE:
11pt">Block direct inbound SMTP connections to
JNOS. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:
'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE:
11pt">Set up an MX in Linux using all the modern
spam avoidance mechanisms dynamic black lists, UBE
detection, signature-based detection, etc.) and
send all inbound email to JNOS through that mail
server using an MX record in DNS. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:
'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE:
11pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:
'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE:
11pt">Michael<o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:
'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE:
11pt">N6MEF<o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:
'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE:
11pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY:
'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE:
11pt"><o:p></o:p></span></p>
<div>
<div style="BORDER-BOTTOM: medium none; BORDER-LEFT:
medium none; PADDING-BOTTOM: 0in; PADDING-LEFT:
0in; PADDING-RIGHT: 0in; BORDER-TOP: #e1e1e1 1pt
solid; BORDER-RIGHT: medium none; PADDING-TOP:
3pt">
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><b><span
style="FONT-FAMILY: 'Calibri','sans-serif';
COLOR: windowtext; FONT-SIZE: 11pt">From:</span></b><span
style="FONT-FAMILY: 'Calibri','sans-serif';
COLOR: windowtext; FONT-SIZE: 11pt"> <a
moz-do-not-send="true"
href="mailto:nos-bbs-bounces@tapr.org">nos-bbs-bounces@tapr.org</a>
[<a class="moz-txt-link-freetext" href="mailto:nos-bbs-bounces@tapr.org">mailto:nos-bbs-bounces@tapr.org</a>] <b>On
Behalf Of </b>Jose Ng Lee<br>
<b>Sent:</b> Sunday, March 16, 2014 10:55 PM<br>
<b>To:</b> TAPR xNOS Mailing List<br>
<b>Subject:</b> [nos-bbs] How to avoid SMTP
spam mail in mqueue<o:p></o:p></span></p>
</div>
</div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p></o:p></p>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">I
noticed today my Raspberry Pi Jnos was respawing
in every few minutes. So, I checked and found
out there was some spam e-mails in mqueue not
been able to deliver and causing the system to
crash and respawn. Deleted those e-mails and
checking the logs and put in blacklist the
offender IPs.</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">I play
with 3 Jnos systems:</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Main
systems PC with Linux Ubuntu 12.04 LTS:
onx.hp2at.ampr.org</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">No
spam mail in mqueue.</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Raspberry
Pi with Raspbian: hp2ng.ampr.org</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Few
spam mail in mqueue.</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">PC
with Centos 5.9: hp2sa.ampr.org</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">THOUSANDS
of spam mail in mqueue. Don't know how this got
through or why it was received in JNOS. The
autoexec.nos is the same as my other system.</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">This
is on the message heading on one mail:</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Received:
from pc-200402271018 by hp2sa.ampr.org (ONXSA
BBS) with SMTP<br>
id AA24803 ; Thu, 13 Mar 2014 03:17:52
EST<br>
From: =?BIG5?B?pWqo5a21vNY=?= <<a
moz-do-not-send="true"
href="mailto:springboard@yahoo.com">springboard@yahoo.com</a>><br>
To: "awze" <<a moz-do-not-send="true"
href="mailto:awze@awze.com">awze@awze.com</a>><br>
Subject:<br>
=?BIG5?B?RGlzbmV5qOC1o7nPrtGhQqlfpf2lzaeupHCpaiC1paqpxXao7LTBuc+u0aFCpfq6?=<br>
=?BIG5?B?0KRqpViyTaFJ?=<br>
Date: Wed, 28 Apr 2004 22:58:06 +0800<br>
MIME-Version: 1.0<br>
Content-Type: text/html;<br>
charset="Big5"<br>
Content-Transfer-Encoding: quoted-printable<br>
X-Priority: 3<br>
X-MSMail-Priority: Normal<br>
X-Mailer: Microsoft Outlook Express
6.00.2800.1106<br>
X-MimeOLE: Produced By Microsoft MimeOLE
V6.00.2800.1106<br>
Message-Id: <<a moz-do-not-send="true"
href="mailto:24804@hp2sa.ampr.org">24804@hp2sa.ampr.org</a>></span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Took
this JNOS offline until the problem solve.</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Please
can anyone know a way to deny receiving spam
mail in jnos.</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">Thanks,</span><o:p></o:p></p>
</div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span
style="FONT-FAMILY: 'Arial','sans-serif'">José /
HP2AT</span><o:p></o:p></p>
</div>
</div>
</blockquote>
</nos-bbs@tapr.org></n6mef@mefox.org></hp2cwb@cwpanama.net></blockquote>
<br>
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<br>
<pre wrap="">_______________________________________________
nos-bbs mailing list
<a class="moz-txt-link-abbreviated" href="mailto:nos-bbs@tapr.org">nos-bbs@tapr.org</a>
<a class="moz-txt-link-freetext" href="http://www.tapr.org/mailman/listinfo/nos-bbs">http://www.tapr.org/mailman/listinfo/nos-bbs</a>
</pre>
</blockquote>
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