Christian Zimmermann writes
I have received a few email bounces recently indicating that nebka is blacklisted by barracuda. Each time, I went to the barracuda website and asked to be whitelisted. It is still going on.
Thus I google for barracuda problems, and come across this:
I looked at this. Unfortunately it is not dated. And I don't fully understand it. I am not an email expert.
Seeing this, I try to understand whether nebka is subject to any of the discussed issues. Now, aras, aacis etc. resolve into the email addresses of Ivan, Thomas and me. However, when Ivan and Thomas are unreachable, messages bounce back to the sender, even if it is a pretend sender. It seems to be what triggers barracuda to think nebka is sending spam, it is in fact error messages replying to spam.
I see several of those messages in /var/spool/exim4/input, for example:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
kurmanov@openlib.org (generated from root@authors.repec.org) SMTP error from remote mail server after end of data: host snefru.openlib.org [128.252.177.195]: 550 Rejected krichel@openlib.org (generated from root@authors.repec.org) SMTP error from remote mail server after end of data: host snefru.openlib.org [128.252.177.195]: 550 Rejected
------ This is a copy of the message, including all the headers. ------
Return-path: <LolaoscarPierre@gamespy.com> Received: from cable200-116-62-113.epm.net.co ([200.116.62.113] helo=paola1af38a 7f8.une.net.co) by nebka.uconn.edu with smtp (Exim 4.63) (envelope-from <LolaoscarPierre@gamespy.com>) id 1JT6hN-0001Jn-Hp for root@authors.repec.org; Sat, 23 Feb 2008 21:34:41 -0500 Message-ID: <3016501c8768d$d2cb3c20$713e74c8@paola1af38a7f8> From: "Melody Lund" <LolaoscarPierre@gamespy.com> To: <root@authors.repec.org> Subject: eliminate Debt - Take Action Today Date: Sat, 23 Feb 2008 21:34:34 +0500
or
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
kurmanov@openlib.org (generated from aacis@authors.repec.org) SMTP error from remote mail server after end of data: host snefru.openlib.org [128.252.177.195]: 550 Rejected krichel@openlib.org (generated from aacis@authors.repec.org) SMTP error from remote mail server after end of data: host snefru.openlib.org [128.252.177.195]: 550 Rejected
------ This is a copy of the message, including all the headers. ------
Return-path: <dzprd@adelphia.com> Received: from c-98-216-51-197.hsd1.ma.comcast.net ([98.216.51.197]) by nebka.uconn.edu with esmtp (Exim 4.63) (envelope-from <dzprd@adelphia.com>) id 1JTKpW-0007QU-27 for aacis@authors.repec.org; Sun, 24 Feb 2008 12:40:02 -0500 Message-ID: <000501c8770c$06189f5d$a489e58c@ncalip> From: "don max" <dzprd@adelphia.com> To: <aacis@authors.repec.org> Subject: Men and Women need Designer Shoes, Enjoy the Direct Wholesale Prices on Designer Footwear Date: Sun, 24 Feb 2008 15:52:39 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198
So they say Designer Shoes are the new thing! etc...
What are we to do? it looks like the spam filter Thomas installed on openlib.org is creating problems upstream...
I have spamassssin (SA) on the fafner, khufu, snefru and raneb, all the machines that receive mail. SA checks that the calling machine does figure on blacklists. nebka has no filter. The aras account gets hundreds of spam messages a day. Not good. If you don't filter, you get more spam. If your machine filters, over time you will get fewer spam. Here is what I suggest to day: (1) move the root disk to the large disk that Bob has given us. (2) upgrade system to Debian Stable. (3) install spamassassin with settings of snefru (4) close aacis account (5) start mirorring once a week (6) badblock check sda (1) has highest priority for me but it is the only job I can not do. All other jobs have the risk of crashing the machine crashing. I am happy to do all other jobs if/when the root file system is moved. Cheers, Thomas Krichel http://openlib.org/home/krichel RePEc:per:1965-06-05:thomas_krichel phone: +7 383 330 6813 skype: thomaskrichel