To:
Mats Dufberg <dufberg@nic-se.se>
cc:
dnsop@cafax.se
From:
Robert Elz <kre@munnari.OZ.AU>
Date:
Wed, 07 Feb 2001 18:12:30 +0700
In-reply-to:
Your message of "Wed, 07 Feb 2001 10:03:35 +0100." <Pine.BSF.4.30.0102070950180.8123-100000@spider.nic-se.se>
Sender:
owner-dnsop@cafax.se
Subject:
Re: Bogus nic.fr behavior
Date: Wed, 7 Feb 2001 10:03:35 +0100 (CET)
From: Mats Dufberg <dufberg@nic-se.se>
Message-ID: <Pine.BSF.4.30.0102070950180.8123-100000@spider.nic-se.se>
| No, but at least you can at least easily spot "", "localhost" and
| "administrator@localhost" as bad alternatives.
yes, and the ones where people stick "@" characters into the
DNS formatted string (producing "user@host"@domain type e-mail addresses...)
The two problems I'd particularly like to avoid are the valid looking
e-mail address that simply forwards to what appears to be a black hole
(some ISPs collecting huge collections of mail no-one ever reads, or
at least, never responds to).
And worse, the very valid looking "user.registered.dom.ain" where
"registered.dom.ain" has an MX record that points to the ISP's e-mail
server, and everything looks well configured.
Until you try and send mail to user@registered.dom.ain and get back
a bounce message "Relaying for that host denied"...
kre