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Summary: fairly urgent problem with chambana.net's outbound mail
service: other services (att.net, sbcglobal, umich.edu, UIUC CITES)
are accepting somebody's judgement that chambana.net is a spam
source, and they're auto-rejecting mail from it, or at least
flagging it as likely spam (in CITES case). Given what I've seen
from CITES, this may have been ongoing since 3/8.<br>
<br>
Suspicion: given umich.edu's helpful info below, it appears that the
chambana outbound mail server 209.66.96.68 *has a bogus-looking
reverse DNS entry*. Do we (Josh?) have any control over this???
If not, is there a way to route through a different outbound mailer?<br>
<br>
[[Further: some annoying trouble with the IMC mail server ... I'd
sent a msg or two to imc-tech about this over last couple days,
hadn't heard back from anyone. Now I see those messages haven't
made it into the imc-tech archives, so probably nobody has seen
them. Argh. Hope it will work to send directly like this.]]<br>
<br>
Fallout from above problem: lots of people on various chambana lists
are being set to "NOMAIL". Today that included Carol/Aaron, and
Rev. Underwood, from CUCPJ Discuss list. Mailman does this when it
gets a fatal bounce, as happens when receiving sites reject mail due
to our sender being flagged as a spam source...<br>
<br>
Help!<br>
<br>
Stuart<br>
<br>
<br>
-------- Original Message --------
<table class="moz-email-headers-table" border="0" cellpadding="0"
cellspacing="0">
<tbody>
<tr>
<th align="RIGHT" nowrap="nowrap" valign="BASELINE">Subject: </th>
<td>chambana-listing-as-spammer: need reverse DNS for
209.66.96.68! - was Re: att.net and earthlink.net block
Chambana e-mail (from 209.66.96.68)</td>
</tr>
<tr>
<th align="RIGHT" nowrap="nowrap" valign="BASELINE">Date: </th>
<td>Sat, 17 Mar 2012 10:10:22 -0500</td>
</tr>
<tr>
<th align="RIGHT" nowrap="nowrap" valign="BASELINE">From: </th>
<td>Stuart Levy <a class="moz-txt-link-rfc2396E" href="mailto:stuartnlevy@gmail.com"><stuartnlevy@gmail.com></a></td>
</tr>
<tr>
<th align="RIGHT" nowrap="nowrap" valign="BASELINE">To: </th>
<td><a class="moz-txt-link-abbreviated" href="mailto:imc-tech@lists.chambana.net">imc-tech@lists.chambana.net</a></td>
</tr>
</tbody>
</table>
<br>
<br>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
Found more about why chambana.net/209.66.96.68 is *still* being
listed as a spam source: there's no reverse DNS for that IP
address. Or maybe there is, but umich.edu and probably others don't
think that "64.124.106.68.available.above.net" is legitimate,
apparently. (This would also explain why CITES started classifying
'most all of my *@lists.chambana.net message as spam on March 8th.)<br>
<br>
Do any of us have control over reverse DNS for 209.66.96.68? This
seems pretty serious.<br>
<br>
(Details, from <a moz-do-not-send="true"
href="http://spambusters.mail.umich.edu/troubleshoot/blockstatus/">http://spambusters.mail.umich.edu/troubleshoot/blockstatus/</a>
- Aaron Johnson Ortiz gets his mail at umich.edu, which just sent a
fatal bounce in refusing to accept a chambana.net message, and
fortunately explains its reasoning better than
earthlink/att.net/CITES):<br>
<blockquote type="cite">209.66.96.68<br>
Status: Blocked<br>
Notes: This IP appears on the UM Postmaster list of blocked
hosts.<br>
No e-mail will be accepted from 209.66.96.68.<br>
Contact: UM Postmaster<br>
Status: No Spamhaus SBL blocks detected.<br>
Notes: <br>
Status: No Spamhaus XBL blocks detected.<br>
Notes: <br>
Status: No Spamhaus PBL blocks detected.<br>
Notes: <br>
Status: No Invaluement SIP blocks detected.<br>
Notes: <br>
Status: No Invaluement SIP/24 blocks detected.<br>
Notes: <br>
Status: Notice<br>
Notes: This IP does not have a valid reverse DNS record. Please
have this DNS issue fixed to avoid delays in mail delivery.</blockquote>
<br>
<br>
<br>
<br>
<br>
<br>
On 3/15/12 2:38 PM, Stuart Levy wrote:
<blockquote cite="mid:4F62451E.5080202@gmail.com" type="cite">
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
Do we have any way of telling whether spam is being sent through
the chambana.net mail server (from it to elsewhere)?<br>
<br>
I'm seeing "bounce" messages from both att.net and earthlink.net
reporting that they're blocking chambana.net mail from
<pre wrap="">209.66.96.68</pre>
(This was for OccupyCU list mail, but I imagine the same would be
true for any att/earthlink user receiving chambana.net email).<br>
<br>
I've used the <a moz-do-not-send="true"
class="moz-txt-link-freetext" href="http://earthlink.net/block">http://earthlink.net/block</a>
page's advice on getting our mail server un-blocked.<br>
<br>
Att.com (sbcglobal etc.) has a helpful-looking bounce message,
referring to <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E" href="http://att.net/blocks">"http://att.net/blocks"</a>,<br>
but there is no such web page. Google searching turned up this:<br>
<br>
<a moz-do-not-send="true"
href="http://rbl.att.net/block_inquiry.html">http://rbl.att.net/block_inquiry.html</a><br>
<br>
I'm filling in its please-unblock-us page too, <br>
<a moz-do-not-send="true"
href="http://rbl.att.net/cgi-bin/rbl/block_admin.cgi">http://rbl.att.net/cgi-bin/rbl/block_admin.cgi</a><br>
which among other things asks "what configuration changes have you
made since you were blocked?",<br>
i.e. demonstrate that you have ceased to beat your spouse...<br>
<br>
For reference here's a sample bounce:<br>
<br>
<div class="moz-text-plain" wrap="true" graphical-quote="true"
style="font-family: -moz-fixed; font-size: 12px;"
lang="x-western">
<pre wrap="">This is a Mailman mailing list bounce action notice:
List: OccupyCU
Member: <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:charles.eleanor@sbcglobal.net">charles.eleanor@sbcglobal.net</a>
Action: Subscription disabled.
Reason: Excessive or fatal bounces.
The triggering bounce notice is attached below.
Questions? Contact the Mailman site administrator at
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:mailman@lists.chambana.net">mailman@lists.chambana.net</a>.
</pre>
</div>
<br>
<fieldset class="mimeAttachmentHeader"><legend
class="mimeAttachmentHeaderName">ForwardedMessage.eml</legend></fieldset>
<table class="header-part1" border="0" cellpadding="0"
cellspacing="0" width="100%">
<tbody>
<tr>
<td>
<div class="headerdisplayname" style="display:inline;">Subject:
</div>
Undelivered Mail Returned to Sender</td>
</tr>
<tr>
<td>
<div class="headerdisplayname" style="display:inline;">From:
</div>
<a moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:MAILER-DAEMON@mail0.frost.chambana.net">MAILER-DAEMON@mail0.frost.chambana.net</a>
(Mail Delivery System)</td>
</tr>
<tr>
<td>
<div class="headerdisplayname" style="display:inline;">Date:
</div>
3/15/12 11:19 AM</td>
</tr>
</tbody>
</table>
<table class="header-part2" border="0" cellpadding="0"
cellspacing="0" width="100%">
<tbody>
<tr>
<td>
<div class="headerdisplayname" style="display:inline;">To:
</div>
<a moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:occupycu-bounces@lists.chambana.net">occupycu-bounces@lists.chambana.net</a></td>
</tr>
</tbody>
</table>
<br>
<div class="moz-text-plain" wrap="true" graphical-quote="true"
style="font-family: -moz-fixed; font-size: 12px;"
lang="x-western">
<pre wrap="">This is the mail system at host mail0.frost.chambana.net.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:charles.eleanor@sbcglobal.net"><charles.eleanor@sbcglobal.net></a>: host sbcmx8.prodigy.net[207.115.36.22] said:
553 5.3.0 nlpi107 DNSBL:ATTRBL 521< 209.66.96.68
>_is_blocked.__For_information_see_<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://att.net/blocks">http://att.net/blocks</a> (in reply to MAIL
FROM command)
</pre>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<div class="moz-text-plain" wrap="true" graphical-quote="true"
style="font-family: -moz-fixed; font-size: 12px;"
lang="x-western">
<pre wrap="">Reporting-MTA: dns; mail0.frost.chambana.net
X-Postfix-Queue-ID: C0E5A16CE36
X-Postfix-Sender: rfc822; <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:occupycu-bounces@lists.chambana.net">occupycu-bounces@lists.chambana.net</a>
Arrival-Date: Thu, 15 Mar 2012 16:19:34 +0000 (UTC)
Final-Recipient: rfc822; <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:charles.eleanor@sbcglobal.net">charles.eleanor@sbcglobal.net</a>
Original-Recipient: <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:rfc822;charles.eleanor@sbcglobal.net">rfc822;charles.eleanor@sbcglobal.net</a>
Action: failed
Status: 5.3.0
Remote-MTA: dns; sbcmx8.prodigy.net
Diagnostic-Code: smtp; 553 5.3.0 nlpi107 DNSBL:ATTRBL 521< 209.66.96.68
>_is_blocked.__For_information_see_<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://att.net/blocks">http://att.net/blocks</a>
</pre>
</div>
<br>
<fieldset class="mimeAttachmentHeader"><legend
class="mimeAttachmentHeaderName">ForwardedMessage.eml</legend></fieldset>
<table class="header-part1" border="0" cellpadding="0"
cellspacing="0" width="100%">
<tbody>
<tr>
<td>
<div class="headerdisplayname" style="display:inline;">Subject:
</div>
[OccupyCU] General Assembly</td>
</tr>
<tr>
<td>
<div class="headerdisplayname" style="display:inline;">From:
</div>
Theresa Scott <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:msscott729@yahoo.com"><msscott729@yahoo.com></a></td>
</tr>
<tr>
<td>
<div class="headerdisplayname" style="display:inline;">Date:
</div>
3/15/12 11:19 AM</td>
</tr>
</tbody>
</table>
<table class="header-part2" border="0" cellpadding="0"
cellspacing="0" width="100%">
<tbody>
<tr>
<td>
<div class="headerdisplayname" style="display:inline;">To:
</div>
occupycu <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:occupycu@lists.chambana.net"><occupycu@lists.chambana.net></a></td>
</tr>
</tbody>
</table>
<br>
<div class="moz-text-html" lang="x-western">
<div style="color:#000; background-color:#fff;
font-family:garamond, new york, times, serif;font-size:12pt">
<div>FYI, tomorrow's ocCUpy General Assembly will be held in
Room 222 of the Champaign Public Library. Hope to see you.
</div>
<div><br>
</div>
<div>Theresa</div>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<div class="moz-text-plain" wrap="true" graphical-quote="true"
style="font-family: -moz-fixed; font-size: 12px;"
lang="x-western">
<pre wrap="">_______________________________________________
OccupyCU mailing list
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:OccupyCU@lists.chambana.net">OccupyCU@lists.chambana.net</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.chambana.net/mailman/listinfo/occupycu">http://lists.chambana.net/mailman/listinfo/occupycu</a>
</pre>
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</blockquote>
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