From: Scott Merrill (no email)
Date: Mon Aug 01 2005 - 12:18:09 EDT
Hello all.
I've searched for some time, and read a fair number of archive messages,
but I haven't found anything addressing my need (quite possibly due to
poor search terms on my part).
Management wants to ensure that all emails from any sender at CLIENT are
automatically sent to several local recipients. This needs to be done
on the mail server to ensure that mail from CLIENT is always distributed
internally regardless of which recipient PCs are running.
I originally asked that we encourage CLIENT to manually include the
necessary recipients, but my suggestion was rejected. =(
As a first attempt, I created an alias, 'client', and used this in a
sender_bcc_maps:
sender_bcc_maps = hash:/etc/postfix/sender_bcc_maps
$ cat /etc/postfix/sender_bcc_maps
@client.com
is an alias populated by the virtual users who need to
receive these messages.
This works fine for people not directly addressed by CLIENT in the
original messages; but people included on the To or Cc lines are getting
duplicate messages, causing some confusion.
I _think_ I want to use an after-queue content filter to modify the
incoming messages from CLIENT. I hacked Bennett Todd's smtpprox filter
to determine which local recipients were not already recieiving the
message, and then add a BCC header for them.
During testing, adding the header worked fine, but the message was never
delivered to the BCC recipients.
It was my understanding that Postfix uses a single queue file for all
recipients of a message. As such, I thought that adding the BCC header
and requeueing the message would accomplish what I wanted. I guess my
initial understanding was mistaken.
Most of the search results I found so far deal with _archiving_ messages
based on some condition(s). I want to actually deliver the messages to
additional recipients based on some condition(s).
I'm using virtual users, so I can't rely on procmail.
Management really wants the _original_ message sent to all necessary
local recipients, so that they can see who else was included in the
original delivery. Otherwise I'd just use a script to forward copies to
the necessary recipients.
I tried using smtpprox as a before-queue filter, but kept getting:
"warning: received garbage from proxy 127.0.0.1:10025: Received DATA
command, beginning filtering."
The warnings on the before-queue readme that it is only suitable for
low-volume sites have me concerned, too. What specifically is
considered "low-volume" in the context of that document?
Is it possible for me to accomplish what's been asked of me? If so, any
pointers or suggestions would be greatly appreciated!
Thanks,
Scott
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