Re: Re: Small addition to draft-gellens-submit-bis-02.txt

>>  A discussion on the ietf-smtp mailinglist made me think and suggest
>> the following small addition to your draft

>I missed that discussion.  I'll have to look for it.

it is in the:
Annonimous final delivery / submission tread
Between me and Hector Santos

Ps i still do not understand what Hector means by "Annonimous Final Delivery"

>>
>>
>>  To add to the last paragraph of
>>  3.1.  Submission Identification
>>
>>
>>  If an MSA host accepts messages on port 25 then DNS-MX records
>> SHOULD NOT point to this host.
>>
>>  or more extensivly
>>
>>  If a host accepts messages on port 25 for submission only then
>> DNS-MX RR-records for this domain MUST NOT point to this host.
>
> I don't think we can make such a change, for two reasons: (1) the
> draft has already been approved and is in the RFC Editor's queue,  and
> such a change can't be considered strictly editorial and hence can't
> be done at this stage; (2) I don't think such a change would be a
> good idea, because some sites do point MX records at their submission
> servers, and some clients do check MX records in order to discover
> the submission server.

Really i do not know any MUA/ mailclients  that uses MX records, but i think you have much more experience than me in this.
Ps i have nothing against and are in favor of A records pointing at MSA's


>>
>>
>>  This is just a small addition to make (even more) clear that MSA's
>> are not relay or delivery  systems.
>>
>>  Please let me know if you agree or why you disagree with it.

> I like the idea of making a more clear distinction, and I'd like to
> move away from the use of port 25 for submission.  I just don't think
> this prohibition is the way to do it.

It is only a prohibition if there is only submission at port 25.
MX records are (primarely?) for finding a  relaying or delivering MTA for that domain, that is why having MX record pointing at an MSA is not an useful option.

But i can see your point about the RFC editors queue, I didn't know that the draft was allready so far on the RFC track

Thanks for your reply