ietf-smtp
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Re: draft-atkins-smtp-traffic-control

2011-11-01 08:00:56

Steve Atkins <steve(_at_)blighty(_dot_)com> wrote:

Tony suggested that modifying SMTP clients to always retry 4xx responses
at a much higher rate than is currently done would be a solution to
that, and one that would be effectively free on the modern Internet.
Which is a decent observation, for some SMTP servers.

I was thinking higher but not much higher, e.g. have a starting interval
of several minutes and increase it by a small percentage each time. If a
site is deliberately deferring mail then prompt delivery is clearly less
important to them than some other consideration, so it doesn't make much
sense to bust a gut to deliver their mail asap.

Tony.
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