[PLUG] blocked from zen.spamhaus.org

Galen Seitz galens at seitzassoc.com
Thu Dec 11 01:57:59 UTC 2008


Our Postfix mail server can no longer access the RBL at 
zen.spamhaus.org.  The maillog has many entries like this one:

Dec 10 17:51:58 zinc postfix/smtpd[11092]: warning: 
114.32.177.128.zen.spamhaus.org: RBL lookup error: Host or domain name 
not found. Name service error for name=114.32.177.128.zen.spamhaus.org 
type=A: Host not found, try again

This seems to have started occurring sometime between late June and 
late August(I know.  I should pay closer attention to the logs.).  I 
wonder if we are being blocked.  I just reviewed the usage policy 
(http://www.spamhaus.org/organization/dnsblusage.html), and our mail 
server is nowhere near the limits for free use.  Has anyone else had 
this happen?  Is there any recourse other than paying for a data feed?

FYI, here's a summary of a typical day's email.

  --------------------- Postfix Begin ------------------------

    26.426M  Bytes accepted                        27,709,260
    28.286M  Bytes delivered                       29,659,952
  ========   ================================================

       951   Accepted                                 100.00%
  --------   ------------------------------------------------
       951   Total                                    100.00%
  ========   ================================================

        10   4xx Reject relay denied                    0.44%
       283   4xx Reject unknown user                   12.44%
      1953   4xx Reject recipient address              85.85%
        29   4xx Reject client host                     1.27%
  --------   ------------------------------------------------
      2275   Total 4xx Rejects                        100.00%
  ========   ================================================

      2792   Connections made
      1088   Connections lost (inbound)
      2792   Disconnections
       957   Removed from queue
       131   Delivered
       683   Sent via SMTP
       198   Forwarded
         6   Resent

        13   Timeout (inbound)
      1628   RBL lookup error
       255   Hostname verification errors



  ---------------------- Postfix End -------------------------

-- 
Galen Seitz
galens at seitzassoc.com



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