nanog mailing list archives

Re: trapdoor.merit.edu and other impatient Postfix mailers everywhere


From: "Steven J. Sobol" <sjsobol () NorthShoreTechnologies net>
Date: Thu, 2 Aug 2001 13:55:39 -0400 (EDT)


On Thu, 2 Aug 2001 kai () pac-rim net wrote:

Apparently, the nameservers for the blackholes.mail-abuse.org and
dialups.mail-abuse.org zones are overloaded (I get <10% ICMP_echo's
back, and virtually never any DNS answers), causing a more than
60-second connection-established -> 220 Hello banner
answering delay on typical Unix-based Sendmail (and other SMTP)
servers with default DNS resolver timeouts.

Kai,

Just blackholes and dialups? Did you check relays? Or do you not use RSS?


-- 
JustThe.net LLC - Steve "Web Dude" Sobol, CTO - sjsobol () JustThe net 

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