Re: [Emailcore] Proposed ESMTP keyword RCPTLIMIT

Dave Crocker <dhc@dcrocker.net> Fri, 12 March 2021 20:22 UTC

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Reply-To: dcrocker@bbiw.net
To: "Brotman, Alex" <Alex_Brotman@comcast.com>, "dcrocker@bbiw.net" <dcrocker@bbiw.net>, Todd Herr <todd.herr=40valimail.com@dmarc.ietf.org>
Cc: "emailcore@ietf.org" <emailcore@ietf.org>, Jeremy Harris <jgh@wizmail.org>
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From: Dave Crocker <dhc@dcrocker.net>
Organization: Brandenburg InternetWorking
Message-ID: <29350ca2-f1eb-092f-f1ec-8bb9e1c6ea55@dcrocker.net>
Date: Fri, 12 Mar 2021 12:21:58 -0800
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Subject: Re: [Emailcore] Proposed ESMTP keyword RCPTLIMIT
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On 3/12/2021 12:11 PM, Brotman, Alex wrote:
> This may not work well in practice.  It's entirely possible that the number of permitted recipients (or any similar limitation) could change during the session as more is learned about the sender. 

I have two responses:

    1.  Wow.

    2.  Don't advertise a number.

If the practice is widespread, then yeah, it's probably not worth doing 
the particular option.

d/

-- 
Dave Crocker
Brandenburg InternetWorking
bbiw.net