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authorPhilip Hazel <ph10@hermes.cam.ac.uk>2007-02-06 12:19:27 +0000
committerPhilip Hazel <ph10@hermes.cam.ac.uk>2007-02-06 12:19:27 +0000
commit4c590bd11647b7440bd982a8c72ebcf5c66564b0 (patch)
tree98c5d7e87d60defe5bf522c023a453919303eb98 /doc/doc-txt/NewStuff
parent14f4a80da26686a979d4ac4c7040cb3e6350a746 (diff)
Flush SMTP before callout (unless control=no_callout_flush).
Diffstat (limited to 'doc/doc-txt/NewStuff')
-rw-r--r--doc/doc-txt/NewStuff10
1 files changed, 7 insertions, 3 deletions
diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index 43be722b0..b05db458a 100644
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.137 2007/02/06 11:11:39 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.138 2007/02/06 12:19:27 ph10 Exp $
New Features in Exim
--------------------
@@ -233,8 +233,12 @@ Version 4.67
time and date.
11. Exim has been modified so that it flushes SMTP output before implementing
- a delay in an ACL. This behaviour can be disabled by obeying control =
- no_delay_flush at some earlier point.
+ a delay in an ACL. It also flushes the output before performing a callout,
+ as this can take a substantial time. These behaviours can be disabled by
+ obeying control = no_delay_flush or control = no_callout_flush,
+ respectively, at some earlier stage of the connection. The effect of the
+ new default behaviour is to disable the PIPELINING optimization in these
+ situations, in order to avoid unexpected timeouts in clients.
12. There are two new expansion conditions that iterate over a list. They are
called forany and forall, and they are used like this: