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

John Levine <johnl@taugh.com> Sun, 18 April 2021 22:23 UTC

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Date: 18 Apr 2021 18:23:05 -0400
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From: "John Levine" <johnl@taugh.com>
To: ietf-smtp@ietf.org
Cc: ned.freed@mrochek.com
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Subject: Re: [ietf-smtp] [Emailcore] Proposed ESMTP keyword RCPTLIMIT
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It appears that Ned Freed  <ned.freed@mrochek.com> said:
>> On 17/03/2021 21:19, Jeremy Harris wrote:
>> > On 15/03/2021 14:59, Ned Freed wrote:
>> >> I think this extension is an important thing to have, so I've put together the
>> >> beginnings of a specification:
>> >>
>> >>    https://datatracker.ietf.org/doc/draft-freed-smtp-limits/
>
>> > an implementation
>
>> Now available from the Exim git.
>
>Very cool!
>
>FWIW, I just submitted an updated draft. It should not affect your implementation.

Added it to my tiny MTA, too. The options to set limits were always
there, this just added a tiny plugin to add them to the EHLO response.

$ telnet -4 mail2.iecc.com 25
Trying 64.57.183.52...
Connected to mail2.iecc.com.

220 mail2.iecc.com mailfront ESMTP
ehlo pedro.iecc.com
250-mail2.iecc.com
250-SMTPUTF8
250-AUTH LOGIN
250-LIMTS RCPTMAX=20 MAILMAX=5
250-SIZE 100000000
250-8BITMIME
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 STARTTLS
quit
221 2.0.0 Good bye.