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Date:      Fri, 29 Sep 2000 10:14:23 -0400 (EDT)
From:      Jim Weeks <jim@siteplus.net>
To:        Jan Knepper <jan@smartsoft.cc>
Cc:        freebsd-questions@FreeBSD.ORG, freebsd-isp@FreeBSD.ORG
Subject:   Re: DNS: having domain1.com and domain1.net point to the same IP.
Message-ID:  <Pine.BSF.4.21.0009291010390.643-100000@veager.siteplus.net>
In-Reply-To: <39D4A0C2.2F93A24C@smartsoft.cc>

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On Fri, 29 Sep 2000, Jan Knepper wrote:
 
> No an example of a daemon that would choke, but UUnet didn't have my reverse-DNS
> setup so the reverse lookup's didn't work.
> 
> For that reason I resend (this) messages, because I didn't see it appear on the
> list.
> 
> Appearantly SMTP (as postfix) checks via a reverse lookup whether or not a host
> really exists. When it does not, it does not accept the message.
  
I guess my point is that what you are describing would fail with CNAMES as
well.

Reverse lookups are like Highlanders.  "There can be only one."

Cheers,

Jim



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