| Am 06.03.13 18:08, schrieb Jeremy Harris:
| > On 06/03/2013 16:43, Andreas Pflug wrote:
| >> In any case, I'd like to bounce NDRs on non-spams, and silently omit
| >> spams mails. Consequently, I have to receive ALL mails, analyze them and
| >> react accordingly.
| >
| > The "Consequently" you claim does not actually apply. You can do your
| > analysis after receiving the mail content but *before* accepting it.
| SpamAssassin/MailScanner works an exim's queue files, i.e. after smtp is
| finished.
It's possible to hijack Exim's DATA-time content and malware scanning
to run arbitrary programs and use their output as accept/reject
feedback. We do that here to hook in to a milter-based filter. The
limitation is that you can't actually change the in-flight message, only
get feedback.
Since this is somewhat intricate I'm not going to try to describe
it here, just refer interested parties to my blog entry about it:
http://utcc.utoronto.ca/~cks/space/blog/sysadmin/EximMilterHookup
This setup has been running solidly for us without problems since I
wrote that entry.
- cks
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