From: Lyndon Nerenberg {VE6BBM} <lyndon@orthanc.ab.ca>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] rewriting From:
Date: Thu, 3 Apr 2003 10:09:33 -0700 [thread overview]
Message-ID: <200304031709.h33H9XGS080683@orthanc.ab.ca> (raw)
In-Reply-To: Your message of "03 Apr 2003 17:55:09 +0200." <1049385309.1074.58.camel@perro>
>RFC-821 says that CNAME is supposed to be rewritten but
that RFC has been replaced by RFC 2821 where that text was removed.
>I take a look to rfc 2476 "message submission" and says
> NOTE: Unconditionally resolving aliases could be harmful. For
> example, if www.example.net and ftp.example.net are both aliases for
> mail.example.net, rewriting them could lose useful information.
And that's why RFC 2821 dropped the text about canonicalization. This
was done to accomodate the current-day practice of hosting "virtual
domains" on a single mail server.
--lyndon
next prev parent reply other threads:[~2003-04-03 17:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-03 16:03 David Presotto
2003-04-03 15:55 ` Gabriel Diaz Lopez de la Llave
2003-04-03 17:07 ` David Presotto
2003-04-03 17:09 ` Lyndon Nerenberg {VE6BBM} [this message]
2003-04-03 22:08 ` Geoff Collyer
2003-04-03 16:52 ` Lyndon Nerenberg {VE6BBM}
2003-04-04 13:25 ` Martin Neitzel
2003-04-04 14:01 ` David Presotto
2003-04-04 14:10 ` Lucio De Re
2003-04-04 14:03 ` David Presotto
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