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Re: Underscore in Host names

To: marco@yukon.cren.org
Subject: Re: Underscore in Host names
From: Nicholas_Briggs.PARC@xerox.com
Date: Thu, 25 Aug 1994 17:50:41 +0300
cc: zmailer@cs.toronto.edu
In-Reply-to: "marco@yukon.cren:org:Xerox's message of Thu, 25 Aug 1994 06:08:56 PDT"

No, underscore is valid in host names in DNS, but underscore is not valid in a
hostname for an RFC821 SMTP transaction.

I do, though, think that zmailer ought to be more lenient on this one.

Follow-Ups:
- Re: Underscore in Host names
  - From: Matti Aarnio <mea@utu.fi> (Thu, 25 Aug 1994 20:22:27 +0300)

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