Path: utzoo!attcan!uunet!zaphod.mps.ohio-state.edu!ub!boulder!stan!marvin!imp
From: imp@marvin.Solbourne.COM (Warner Losh)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: question about SMTP MX records
Message-ID: <1990Oct28.224319.21554@Solbourne.COM>
Date: 28 Oct 90 22:43:19 GMT
References: <9010270002.AA00258@ucbvax.Berkeley.EDU>
Sender: news@Solbourne.COM
Organization: Solbourne Computers Inc.
Lines: 15

In article <9010270002.AA00258@ucbvax.Berkeley.EDU> craig@NNSC.NSF.NET (Craig Partridge) writes:
>RFC 1123 doesn't explicitly require it, but it suggests that support
>for the %-hack is expected (the discussion in Section 5.2.16 being
>my primary source).

However, in existing practice there is at least one mailer that uses
the % for a gateway between internet and decnet.  The address of the
form "imp%node.decnet@twg.com" will cause mail to be sent to NODE::IMP
from the internet host TWG.COM.  This being the case, mail sending
programs should not assume that <a%b@c> is the same as "<@c:a@b>".

Warner
--
Warner Losh		imp@Solbourne.COM
How does someone declare moral bankruptcy?