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Re: [ietf-smtp] parsing SMTP replies

2021-03-23 13:45:53

On 22 Mar 2021, at 18:23, John C Klensin <john(_at_)jck(_dot_)com> wrote:

--On Monday, March 22, 2021 08:57 -0700 Ned Freed
<ned(_dot_)freed(_at_)mrochek(_dot_)com> wrote:

It's somewhat temping to add some sort of "the MXes pointing
at this server can be rolled up" indicator to the limits
specification, but since it's not a limit it doesn't really
fit. If done it needs to be a separate EHLO announcement.

Ned, Laura,

Just a thought, based on little thinking and less information:
Are there any plausible circumstances in which a system might
want to encourage rolling up a few MXs but not very many?

I can’t think of any off the top of my head. I think you’d either want 
everything rolled up or nothing. But I’m not handling large incoming volumes, 
so there may be. 

so, that would turn it into a limit, rather than requiring a
separate announcement keyword.  I'm having trouble imagining
such a case, so, if the answer is "no", don't bother with a
detailed explanation.   However, because I think there is value
in minimizing the number of announcements, the question seems
worth asking.

I would agree with you here. 


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