[Asrg] Redirection at SMTP session

[Jose-Marcio Martins da Cruz]

SM wrote:
> At 08:19 03-12-2008, Jose-Marcio Martins da Cruz wrote:

> 
> You can get the same functionality with a 251 reply code where the MTA 
> accepts the message and forwards it to the new address.  It's a 
> redirection in the sense that the MTA is doing an address rewrite and 
> relaying or delivering the message to the new mailbox.

That's what I want to avoid : "accept and forward", mainly the "accept" part.

> 
> There is no need for a new reply code if the text after the reply code 
> is structured.  You still have to determine how to relay the new address 
> back to the MUA as SMTP does hop by hop delivery.  HTTP, on the other 
> hand, requires a direct connection between the server and the user 
> agent.  Even if there is a proxy in the middle, the user agent still has 
> access to the HTTP reply code.

The idea is why, in this case, SMTP can't work the same way as HTTP ? The goal is, if wanted, be 
able to not work in "store and forward" mode or ("hop by hop", as you say).