I have a machine filtering spam on SuSE 9.0.  I followed the
instructions from
http://www.geocities.com/scottlhenderson/spamfilter.html, other than
putting everything on SuSE 9.0, rather than Redhat.  So, the machine is
running Postfix, AMaViS and Spamassassin.  I am trying to block incoming
e-mail messages with files attached with specific attachments.  For the
sake of troubleshooting, I'm using ".jeb".  After googling about how to
do it, I got the impression this would be a fairly easy task to get
Postfix to do.  Following the instructions, I added the following line
to my /etc/postfix/header_checks file:

/^content-(type|disposition):.*name*=.*\.(jeb)/ REJECT We don't accept
.jeb files

Then, I reloaded Postfix.  After doing so, Postfix will log the
offending file coming in, but still delivers it:

May 12 09:13:26 spamfilter postfix/cleanup[831]: 764A099E53: reject:
header Content-Type: application/octet-stream;??name="test.jeb" from
OUTSIDE_HOST[OUTSIDE_HOST_IP]; from=<MY_OUTSIDE_ADDRESS>
to=<MY_INSIDE_ADDRESS> proto=ESMTP helo=<OUTSIDE_HOST>: We don't accept
.jeb files

Sorry for the book, but I figured I'd get all that out of the way,
now...  Does anyone have a good idea on how one can use either postfix,
amavis or spamassassin to block incoming attachment with specific
extentions?  I thank you, in advance, for your time!
-Erik Bixby

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