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Re: [ietf-smtp] [Emailcore] Proposed ESMTP keyword RCPTLIMIT

2021-03-15 16:42:10
Dave Crocker writes:

Most of the time, enhancement mechanisms, like this, already have significant adoption barriers. So keeping them as simple as possible is to be highly preferred, over making them more nuanced.

That's my take too. I am not sure what I'll gain from doing this in the first place, not to mention any extra complexity of this sort.

Without explicitly defined limits: I'm just picking a reasonable cap and duplicating each message, so their number of recipients is under the cap. This happens much earlier in the processing, even before attempting to find a willing MX to talk to.

MXes which do not announce their limits are going to dominate for some time. So, I still need to do this for the foreseeable time. So, what does this SMTP extension buy me? The only thing I can think of: not duplicating messages when I don't need to.

But the thing is: I don't recall anyone raising this to me, as a problem. This is not on my radar screen as a problem that wants to be solved.

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