On Tue, Jan 20, 2015 at 08:50:32PM +0000, Jeremy Harris wrote:
> > If the nexthop transport is LMTP, it is unsafe to attempt to do
> > cut-through, because individual recipients might be rejected after
> > "." due to quota or similar problems.
>
> Exactly
>
> > How do you deal with a nexthop SMTP relay that rejects a non-empty
> > proper subset of the recipients (replies to RCPT TO).
>
> Each response to RCPT TO from the onward connection is reflected
> to the inbound connection.
So you start out with optimistic cut-through, and queue any later
recipients that take a different route?
--
Viktor.
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