[Dshield] Submitting DSHIELD reports, Dyn IP's and MX hosts

Johannes B. Ullrich jullrich at euclidian.com
Tue Aug 2 15:54:11 GMT 2005


Dave:

  thanks for letting me know. I will check with the administrators for
that particular mail server.

Dave wrote:
> 
> I've had a few failures recently when submitting reports, so I did a little checking and found this kind of interesting...  :-(
> 
> There are 5 MX records for dshield.org.  Which return only 3 discrete IP addresses:
>   MX-5: 65.173.218.116 (mail2.dshield.org)
>   MX-10: 65.173.218.113 (iceman12-ext.giac.net)
>   MX-20: 207.36.86.169 (mail2.euclidian.com)
> 
> Now, since some of us have started sending mail directly to dshield and spamcop, bypassing our local ISP smarthost to improve performance...
> 
> I found the 2nd choice MX (iceman12-ext.giac.net) is blocking mail from Dynamic IP blocks:
> 
>   dave at els1:~$ telnet mail2.dshield.org 25
>   Trying 65.173.218.113...
>   Connected to iceman12-ext.giac.net.
>   Escape character is '^]'.
>   220 rblsmtpd.local
>   helo its-me
>   250 rblsmtpd.local
>   mail from: <my_email>
>   250 rblsmtpd.local
>   rcpt to: reports at dshield.org
>   451 Dynamic IP Addresses See: http://www.sorbs.net/lookup.shtml?<my_dyn_ip>
>   data
>   451 Dynamic IP Addresses See: http://www.sorbs.net/lookup.shtml?<my_dyn_ip>
>   quit
>   221 rblsmtpd.local
>   Connection closed by foreign host.
> 
> The other 2 MX's accept my mail.  Only the 2nd choice is rejecting.  Could someone rectify the situation?  Or are we going to be forced to use our ISP smarthosts?  
> 
> 
> regards,
> 
> /dave
> 
> 
> 
> 
> --------------------------------------
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> 
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