[Pkg-exim4-users] save, in a user filter, ?is not a significant command

[Andreas Metzler]

Regid Ichira <regid23 at yahoo.com> wrote:
>  Consider the following user filter:

>    $ cat .forward
>    # exim filter

>    if $h_subject: is "exim filter bug"
>    then
>      testprint "$h_subject printed by is operator"
>      seen save bug
>    endif
>    deliver jc at rome.example
>    $ 

>  Here, without the seen modifier, a message with the right subject
> will be saved, and also sent to jc at rome.example.  Is that expected with
> the out of the box configuration?

Hello,
Yes it is. exim filter processing does not stop on the first match.
Exim will happily save five local copies and forward three new copies
to external addresses. If you want to save the message to the bug
mailbox and stop processing of matching addresses afterwards, use the
finish command:

--------------------
# exim filter
if $h_subject: is "exim filter bug"
then
  testprint "$h_subject printed by is operator"
  save bug
  finish
endif
deliver jc at rome.example
--------------------

The existence of significant deliveries influences what happens
*after* the filter was processed. i.e. whether exim will need to run
the message through another router (e.g. delivery to /var/mail/) or
whether the message was processsed and delivered by the filter.
However as "save" is significant by default "seen save bug" and "save
bug" cause exactly the same behavior. 

cu andreas

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