[Top] [All Lists]

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

2021-03-15 10:30:48
On 3/15/2021 7:59 AM, Ned Freed wrote:
I think this extension is an important thing to have, so I've put together the
beginnings of a specification:

Thanks for doing this.

Quick comments:

In the Introduction, I suggest adding:

SMTP servers have always been able to announce a limit, in a reply, which means that the client first needed to issue a command. The mechanism specified here avoids the overhead of that interactions, by announcing limits prior to any substantive interaction.


The Limits mechanism provides an announcement at the start of a session. Some servers vary their limits, as a session progresses, based on their obtaining more information. The Limits mechanism does not cover in-session limitation changes.

Dave Crocker
Brandenburg InternetWorking

ietf-smtp mailing list