[Asrg] Redirection at SMTP session

[J.D. Falk]

On 03/12/2008 20:54, "Jose-Marcio Martins da Cruz"
<Jose-Marcio.Martins at ensmp.fr> wrote:

> Someone suggested forwarding at SMTP session, the same way as HTTP does.
 [ . . . ]
> This kind of thing isn't an open relay as the SMTP server shall maintain a
> table/database of
> redirections or, at least, some redirection rules.
> 
> Was this kind of thing already discussed in the past ? Any thoughs ?

551  User not local; please try <forward-path>

It's been around since at least RFC 821, possibly longer.  I've never seen
it in the wild, though.