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

["Joel Baker" <lucifer () lightbearer com>]

kai () pac-rim net wrote:
> If you are receiving larger numbers of reports about failing mail
> transport from your customers these days, here is why.
>
> 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.

http://www.mail-abuse.org/subscription.html

Perhaps this is related? (Server blocked off, rather than answering with
a query-denied, perhaps?)
-- 
***************************************************************************
Joel Baker                           System Administrator - lightbearer.com
lucifer () lightbearer com              http://www.lightbearer.com/~lucifer