nanog mailing list archives

Re: WTH does Paul do now?


From: Stefan Schmidt <s.schmidt--nanog () mcbone net>
Date: Thu, 1 Feb 2007 12:50:18 +0100


On Wed, Jan 31, 2007 at 11:09:58PM -0500, Jon Lewis wrote:
   ----- The following addresses had permanent fatal errors -----
<paul () vix com>
    (reason: 553 5.7.1 Service unavailable; Client host [69.28.69.2] 
    blocked using reject-all.vix.com; reason / created)

   ----- Transcript of session follows -----
... while talking to sa.vix.com.:
RCPT To:<paul () vix com>
<<< 553 5.7.1 Service unavailable; Client host [69.28.69.2] blocked using 
reject-all.vix.com; reason / created
550 5.1.1 <paul () vix com>... User unknown

Well...
reject-all.vix.com.     3600    IN      NS      ns.lah1.vix.com.
reject-all.vix.com.     3600    IN      NS      ns.sql1.vix.com.

dig any 2.0.0.127.reject-all.vix.com @ns.sql1.vix.com gives
status: REFUSED
and as ns.lah1.vix.com does alike all authorative nameservers for this
zone are some kind of hmm 'unreachable' thus resulting in a SERVFAIL from
your recursive nameserver.
It seems like your MTA is not very gracious to SERVFAILs from DNSRBLs.

        Stefan, Hosthamster
-- 
"Portability is for people who cannot write new programs."
- Linus Torvalds, 1992


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