[40145] in North American Network Operators' Group
Re: trapdoor.merit.edu and other impatient Postfix mailers everywhere
daemon@ATHENA.MIT.EDU (Steven J. Sobol)
Thu Aug 2 13:56:35 2001
Date: Thu, 2 Aug 2001 13:55:39 -0400 (EDT)
From: "Steven J. Sobol" <sjsobol@NorthShoreTechnologies.net>
To: kai@pac-rim.net
Cc: nanog@nanog.org
In-Reply-To: <2098758637.20010802132239@conti.nu>
Message-ID: <Pine.LNX.4.21.0108021354430.18030-100000@amethyst.nstc.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu
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?
--
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