[81672] in North American Network Operators' Group
Re: Localized mail servers, global scope
daemon@ATHENA.MIT.EDU (Tony Finch)
Thu Jun 23 08:57:17 2005
Date: Thu, 23 Jun 2005 13:56:47 +0100
From: Tony Finch <dot@dotat.at>
To: dcrocker@bbiw.net
Cc: Michael.Dillon@btradianz.com, nanog@merit.edu
In-Reply-To: <42BAAF4A.7040109@dcrocker.net>
Errors-To: owner-nanog@merit.edu
On Thu, 23 Jun 2005, Dave Crocker wrote:
>
> i seem to recall a similar redirect mechanism in SMTP some time ago. not
> worth the effort; broken; or somesuch.
The 251 and 551 forwarding address responses. Many mail servers don't know
a user's forwarding address at SMTP time; most mail servers treat any 5xx
response to RCPT TO the same way; mail servers don't want to maintain a
local database of forwarding addresses culled from 251 responses...
Tony.
--
f.a.n.finch <dot@dotat.at> http://dotat.at/
BISCAY: WEST 5 OR 6 BECOMING VARIABLE 3 OR 4. SHOWERS AT FIRST. MODERATE OR
GOOD.
