Rene Rebe wrote:
> I use exim for quite some time in our office, but some users are unhappy with
> our spam filtering, because they think they loose important mails. Currently
> we just drop all spam-assassin classified mail in the ACL, like:
>
> deny message = Our software thinks the message was spam
> spam = nobody
>
> To make those users more happy I wanted to change the exim configuration to
> instead move the classified messages in an spam sub-folder so they can review
> if they think they missed something. However, after some hours of trial'n
> error I have not found a perfect solution. The best so far was to mark the
> message header and use the system filter like:
>
> if $h_X-Spam-IsSpam contains "1" and not error_message
> then
> save $home/Maildir/.0-Spam/
> fail text "The message was classified as SPAM and might not be seen
> by a human user ..."
> endif
>
> However, this has multiple drawbacks: First the message is initially
> accepted, and thus we might continue receiving spam thru this channel (host)
> as it thinks the address is valid and continues sending, and second, the
> filter "fail" action will often generate a new message directly to the user
> as much spam is send with From: == To: so that the new fail error message
> get's to the user which did not send it, ...
>
> I'm wondering if there is something like "deny but continue" in the ACL
> config that would indicate an error in the "data-in receive phase" and thus
> let the upstream host generate the error message, if any, but continue
> delivering the message locally so that exim can save it into some
> "potentially spam" sub-directory.
Doing the following in the data acl will accept the message yet return a
rejection code to the sending MTA, just as if you had done a deny:
accept spam = nobody
control = fakereject/Our software thinks the message was spam
--
Mike Cardwell - IT Consultant and LAMP developer
Cardwell IT Ltd. (UK Reg'd Company #06920226) http://cardwellit.com/
Technical Blog: https://secure.grepular.com/blog/
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