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Re: [ietf-smtp] CHUNKING and PIPELINING

2021-03-07 18:31:15
On 07/03/2021 20:14, Viktor Dukhovni wrote:
> What Jeremy did not mention is that he's seeing interoperability
> issues (reportedly with Google and IIRC Yahoo) when pipelining

Specifically, both of the two large providers I've noted giving
problems consistently drop the connection without giving a response
for the BDAT LAST.o

Google is fine with a QUIT pipelined after data-ending-in-dot
(tranditional non-CHUNKING); I've not had a chance to evaluate yet.  Both are fine with non-pipelined QUIT and

If so, that's deeply broken, never mind the legality of following a BDAT LAST
with a QUIT. Nothing in the pipeling specification says it is OK for a
later command to in effect be evaluated out of order.

There's even text in RFC 5321 section saying that you can't close the
connection prematurely.


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