[UCIMC-Tech] 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)
Jay Schubert
jay.schubert at gmail.com
Sun Mar 18 12:39:57 UTC 2012
Bump. I think tho is happening on the BYP list serves too
- Jay
On Sunday, March 18, 2012, Stuart Levy <salevy at illinois.edu> wrote:
> 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.
>
> 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?
>
> [[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.]]
>
> 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...
>
> Help!
>
> Stuart
>
>
> -------- Original Message --------
> Subject: 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)
> Date: Sat, 17 Mar 2012 10:10:22 -0500
> From: Stuart Levy <stuartnlevy at gmail.com>
> To: imc-tech at lists.chambana.net
>
> 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.)
>
> Do any of us have control over reverse DNS for 209.66.96.68? This seems
pretty serious.
>
> (Details, from http://spambusters.mail.umich.edu/troubleshoot/blockstatus/- 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):
>
> 209.66.96.68
> Status: Blocked
> Notes: This IP appears on the UM Postmaster list of blocked hosts.
> No e-mail will be accepted from 209.66.96.68.
> Contact: UM Postmaster
> Status: No Spamhaus SBL blocks detected.
> Notes:
> Status: No Spamhaus XBL blocks detected.
> Notes:
> Status: No Spamhaus PBL blocks detected.
> Notes:
> Status: No Invaluement SIP blocks detected.
> Notes:
> Status: No Invaluement SIP/24 blocks detected.
> Notes:
> Status: Notice
> Notes: This IP does not have a valid reverse DNS record. Please have
this DNS issue fixed to avoid delays in mail delivery.
>
>
>
>
>
> On 3/15/12 2:38 PM, Stuart Levy wrote:
>
> Do we have any way of telling whether spam is being sent through the
chambana.net mail server (from it to elsewhere)?
>
> I'm seeing "bounce" messages from both att.net and earthlink.netreporting that they're blocking
chambana.net mail from
>
> 209.66.96.68
>
> (This was for OccupyCU list mail, but I imagine the same would be true
for any att/earthlink user receiving chambana.net email).
>
> I've used the http://earthlink.net/block page's advice on getting our
mail server un-blocked.
>
> Att.com (sbcglobal etc.) has a helpful-looking bounce message, referring
to "http://att.net/blocks",
> but there is no such web page. Google searching turned up this:
>
> http://rbl.att.net/block_inquiry.html
>
> I'm filling in its please-unblock-us page too,
> http://rbl.att.net/cgi-bin/rbl/block_admin.cgi
> which among other things asks "what configuration changes have you made
since you were blocked?",
> i.e. demonstrate that you have ceased to beat your spouse...
>
> For reference here's a sample bounce:
>
> This is a Mailman mailing list bounce action notice:
>
> List: OccupyCU
> Member: charles.eleanor at sbcglobal.net
> Action: Subscription disabled.
> Reason: Excessive or fatal bounces.
>
>
>
> The triggering bounce notice is attached below.
>
> Questions? Contact the Mailman site administrator at
> mailman at lists.chambana.net.
>
> ForwardedMessage.eml
> Subject:
> Undelivered Mail Returned to Sender
> From:
> MAILER-DAEMON at mail0.frost.chambana.net (Mail Delivery System)
> Date:
> 3/15/12 11:19 AM
> To:
> occupycu-bounces at lists.chambana.net
>
> 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
>
> <charles.eleanor at sbcglobal.net>: 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_http://att.net/blocks (in reply to
MAIL
> FROM command)
>
>
> Reporting-MTA: dns; mail0.frost.chambana.net
> X-Postfix-Queue-ID: C0E5A16CE36
> X-Postfix-Sender: rfc822; occupycu-bounces at lists.chambana.net
> Arrival-Date: Thu, 15 Mar 2012 16:19:34 +0000 (UTC)
>
> Final-Recipient: rfc822; charles.eleanor at sbcglobal.net
> Original-Recipient: rfc822;charles.eleanor at sbcglobal.net
> 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_http://att.net/blocks
>
> ForwardedMessage.eml
> Subject:
> [OccupyCU] General Assembly
> From:
> Theresa Scott <msscott729 at yahoo.com>
> Date:
> 3/15/12 11:19 AM
> To:
> occupycu <occupycu at lists.chambana.net>
> FYI, tomorrow's ocCUpy General Assembly will be held in Room 222 of the
Champaign Public Library. Hope to see you.
> Theresa
>
> _______________________________________________
> OccupyCU mailing list
> OccupyCU at lists.chambana.net
> http://lists.chambana.net/mailman/listinfo/occupycu
>
>
>
>
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