diff options
| author | Jeremy Harris <jgh146exb@wizmail.org> | 2016-09-04 14:54:18 +0100 |
|---|---|---|
| committer | Jeremy Harris <jgh146exb@wizmail.org> | 2016-09-05 13:18:45 +0100 |
| commit | ff5929e3b91747e2ecb600711d17a7d0e21749ad (patch) | |
| tree | 282e53de3b3706296c00a94917626f3dab052c38 /doc/doc-docbook | |
| parent | 3e4baf04df1783842277f95a2bd9e09205eba265 (diff) | |
Cutthrough: option to reflect 4xx errors from target to initiator
Diffstat (limited to 'doc/doc-docbook')
| -rw-r--r-- | doc/doc-docbook/spec.xfpt | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index 622e5272d..4ebeaa0c6 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -13003,8 +13003,7 @@ or external command, as described above. It is also used during a .vitem &$verify_mode$& .vindex "&$verify_mode$&" -While a router or transport is being run in verify mode -or for cutthrough delivery, +While a router or transport is being run in verify mode or for cutthrough delivery, contains "S" for sender-verification or "R" for recipient-verification. Otherwise, empty. @@ -28802,7 +28801,7 @@ Notice that we put back the lower cased version afterwards, assuming that is what is wanted for subsequent tests. -.vitem &*control&~=&~cutthrough_delivery*& +.vitem &*control&~=&~cutthrough_delivery/*&<&'options'&> .cindex "&ACL;" "cutthrough routing" .cindex "cutthrough" "requesting" This option requests delivery be attempted while the item is being received. @@ -28842,11 +28841,20 @@ It is not supported for messages received with the SMTP PRDR option in use. Should the ultimate destination system positively accept or reject the mail, a corresponding indication is given to the source system and nothing is queued. -If there is a temporary error the item is queued for later delivery in the -usual fashion. If the item is successfully delivered in cutthrough mode +If the item is successfully delivered in cutthrough mode the delivery log lines are tagged with ">>" rather than "=>" and appear before the acceptance "<=" line. +.new +If there is a temporary error the item is queued for later delivery in the +usual fashion. +This behaviour can be adjusted by appending the option &*defer=*&<&'value'&> +to the control; the default value is &"spool"& and the alternate value +&"pass"& copies an SMTP defer response from the target back to the initiator +and does not queue the message. +Note that this is independent of any receipient verify conditions in the ACL. +.wen + Delivery in this mode avoids the generation of a bounce mail to a (possibly faked) sender when the destination system is doing content-scan based rejection. |