Re: [exim] Favorite Blacklists Survey

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Autor: Wakko Warner
Datum:  
To: Marilyn Davis
CC: exim-users
Betreff: Re: [exim] Favorite Blacklists Survey
Marilyn Davis wrote:
> On Tue, 9 May 2006, Wakko Warner wrote:
> It's www.intersight.com. I don't know how to tell if it's "parked".
> It's there. Can you give me a bigger hint?
>
> Marilyn
>
> p.s.
>
> The whole returned mail:
>
> >From Mailer-Daemon@??? Thu May 11 14:43:54 2006
> Date: Thu, 11 May 2006 14:43:42 -0700
> From: Mail Delivery System <Mailer-Daemon@???>
> To: marilyn@???
> Subject: Mail delivery failed: returning message to sender
>
> 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:
>
>   pch@???
>     SMTP error from remote mailer after RCPT TO:<pch@???>:
>     host smtp.secureserver.net [64.202.166.12]: 553 Attack detected. <http://unblock.secureserver.net/?ip=66.218.47.177>


I guess I can be wrong. No, this site is not parked. I personally feel
the domain could be suspicious due to the yahoo.com contact from whois.
(Please, no flame wars about this, it's personal oppinion)

I did a test to send an email to that address. Here's the results:
[wakko@ani:/home/wakko] telnet smtp.secureserver.net 25
Trying 64.202.166.12...
Connected to smtp.secureserver.net.
Escape character is '^]'.
220 pre-smtp07-01.prod.mesa1.secureserver.net ESMTP
EHLO animx.eu.org
250-pre-smtp07-01.prod.mesa1.secureserver.net
250-PIPELINING
250-SIZE 31457280
250 8BITMIME
MAIL FROM:<wakko@???>
250 ok
RCPT TO:<pch@???>
250 ok
QUIT
221 pre-smtp07-01.prod.mesa1.secureserver.net Goodbye.
Connection closed by foreign host.
[wakko@ani:/home/wakko]

By what the error message returned to you, it may be possible that your
system (that IP that is) attempted to deliver lots of messages to domain(s)
that are handled by secureserver.net Apparently, anyone going to
http://unblock.secureserver.net is accused of being a spammer or sending
viruses, even if you are not blocked by them, with no way to lookup why.

Would your system happen to be an open relay by chance?

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