On Tue, 8 Jun 2010 at 04:06 +0100, Brent Jones wrote
> The behavior as I understand it written on:
> http://www.exim.org/exim-html-current/doc/html/spec_html/ch43.html
> "The system filter is run at the start of a delivery attempt, before
> any routing is done. If a message fails to be completely delivered at
> the first attempt, the system filter is run again at the start of
> every retry."
>
The sentence after that says 'If you want your filter to do something
only once per message, you can make use of the first_delivery condition in
an if command in the filter to prevent it happening on retries.'
Have you perhaps got an if (first_delivery) around the whole filter or
part of it?
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