[Mimedefang] Relayed emails can't be filter!

Steffen Kaiser skmimedefang at smail.inf.fh-bonn-rhein-sieg.de
Fri Jun 13 04:42:23 EDT 2014


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On Fri, 13 Jun 2014, Cương Bùi wrote:

> *1. What emails you are mean with "outgoing"? Are they submitted via the 
> local system, e.g. by calling the sendmail exectuable, or via SMTP? *

> These emails originate from OpenEMM, on the same server. There are 8 running 
> processes of sendmail on different queues.
> => When there are some messages in these queues, it's automatically sent by 
> these processes. (my understanding, not sure 100%)

Hmm, 
http://www.openemm.org/faq/questions/22/Why+do+you+use+Sendmail+and+not+other+MTAs%3F

"Sendmail is difficult to replace in OpenEMM by other MTAs because

- - spool files can easily be generated directly (the process is documented) 
- - therefore, OpenEMM can assign spool file names so that OpenEMM has 
sufficient ID information encoded to use the names for bounce management 
during mail transmission"

I don't know if I understand the 1. statement correctly, but they seem to 
say that they create the spool files for sendmail directly, bypassing the 
"injection" via both sendmail executable and socket.

If that's correct, no milter can be activated obviously. OpenEMM is open 
source, so IMHO patch the processing you want to make into its 
"injection". If you don't want to patch OpenEMM, you need to get to know 
how the mail flow of OpenEMM is, how many sendmail configurations there 
are (the 2nd statement above let me assume that OpenEMM runs its own 
configuration), and put some filter in between. That might brake the 
bounce detection.

- -- 
Steffen Kaiser
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