Autor: Konstantin Boyandin Data: Para: exim-users Asunto: Re: [exim] Message duplication if To/Cc contain alias and one of
addresses it's expanded into
>> The result, from all my experience of harnessing DSPAM, is that as >> soon as pipe transport is used to preprocess the message, Exim's logic
>> of eliminating duplicates cease to function. I had to use the
>> preprocessing at the stage of actual delivery, inserting
>> transport_filter
>
> If the pipe injects the message again into exim it cannot know about
> duplicates already seen, because it's an entirely new message.
>
> You should decide at which stage you want to "spread" your message,
> before or after DSPAM. (Before: you can't apply "user policies", After:
> you're probably doing duplicated work.)
I'm sorry, what do you mean by 'spread'? If the DSPAM is invoked via a
router, then the described situation will result in multiple copies of
the same messages - regardless of whether DSPAM router is located
before or after system_aliases one.
