Re: Working Group Last Call for draft-ietf-sieve-refuse-reject-00.txt

[Matthew Elvey <[e-mail]>]

On 8/23/05 11:08 AM, Mark E. Mallett sent forth electrons to convey:
> On Mon, Aug 22, 2005 at 12:41:05PM -0700, Matthew Elvey wrote:
>   
>> On 8/21/05 7:54 AM, Alexey Melnikov sent forth electrons to convey:
>>     
>>> right.  the key is that you decline a message which is sent from a
>>> different administrative domain.  [...] a "refuse" MUST be able
>>> to tell the other administrative domain that the message was rejected
>>> without instantiating the sending of a new message.
>>>       
>> How's this replacement?
>>
>> (The first sentence is unchanged.)
>>
>>   The "refuse" action refuses delivery of a message by sending back
>>
>> the 550 SMTP response code to an SMTP client. This extension can be 
>> supported only by a Sieve implementation capable of sending the 550 over 
>> an SMTP connection between Administrative Units.
>>     
>
> Well, I'm probably being anal (again).  To me, the use of "between
> Administrative Units" and "over the open Internet" are birds of a
> feather.  I don't think it's important to specify where the message is
> transported, or between whom-- only that the message is turned away by
> the receiver during transport, thus avoiding a later asynchronous
> notification via a separate email message.  e.g. I think refusal should
> apply to a transmission to the SMTP server running on localhost.
>
> mm
>   
No, that doesn't address my concern from a previous email:

On 8/19/05 2:18 PM, Matthew Elvey sent forth electrons to convey:
> ...[If] a Sieve script running on Dest  encounters a 'refuse', and 
> sends a 550 to Relay 2, if Relay 2 then generates a bounce, instead of 
> sending a 550 to MSA, then Dest MUST NOT be considered compliant with 
> 'refuse'. 
>    +------------+                                    +-----------+
>    | Originator |                                    | Recipient |
>    +-----+------+                                    +-----------+
>          |                                                 ^
>          |                    Internet                     |
>          |                    ___^___                      |
>          V                   /       \                     |
>      +---------+    +--------+       +---------+      +----+----+
>      |         |    |        |       |         |      |         |
>      | Source  +--->| MSA    +------>|  Relay2 +----> |  Dest   |
>      |         |    |        |       |         |      |         |
>      +----+----+    +--------+       +---------+      +---------+
>
>                                  \_________Destination_AU__________/
>
>
That's why we need something like "between Administrative Units" of 
"over the open Internet".