From c73792d365065e35d0fa760c4edd6cd193be3b94 Mon Sep 17 00:00:00 2001 From: Jeremy Harris Date: Thu, 4 Feb 2016 10:30:54 +0000 Subject: [PATCH] Docs: add note on costs of cutthrough delivery in local-rejection cases --- doc/doc-docbook/spec.xfpt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index cdca6c4b3..b413791d5 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -28617,6 +28617,14 @@ Note also that headers cannot be modified by any of the post-data ACLs (DATA, MIME and DKIM). Headers may be modified by routers (subject to the above) and transports. +.new +All the usual ACLs are called; if one results in the message being +rejected, all effort spent in delivery (including the costs on +the ultimate destination) will be wasted. +Note that in the case of data-time ACLs this includes the entire +message body. +.wen + Cutthrough delivery is not supported via transport-filters or when DKIM signing of outgoing messages is done, because it sends data to the ultimate destination before the entire message has been received from the source. -- 2.25.1