From owner-freebsd-questions  Tue Apr 27  7:20:23 1999
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Date: Tue, 27 Apr 1999 07:21:02 -0700
To: questions@freebsd.org
From: "Randy A. Katz" <randyk@ccsales.com>
Subject: Blacklist - Block Users' email
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Hi,

This is an unrelated subject so sorry...I'm sure someone on this list knows
the answer though.

I used the blacklist.rc method to procmail filter a user/mailer from
emailing to me. That filter seems to have blocked that user from the entire
mail server...though I don't know how.

1. How did it block the entire server?
2. Is there a better way to just keep one user from emailing me?

Here are the files:

.procmailrc (in the $HOME directory):

VERBOSE=off
MAILDIR=$HOME
PMDIR=$HOME/.procmail
LOGFILE=$PMDIR/log
INCLUDERC=blacklist.rc
SENDMAIL=/usr/sbin/sendmail

blacklist.rc (in the $HOME directory):

BLACKLIST_FILE=${BLACKLIST_FILE:-blacklist.data}
BLACKLIST_LOG=${BLACKLIST_LOG:-blacklist.log}
BLACKLIST_SPOOL=${BLACKLIST_SPOOL:-/dev/null}
FROM_ADDR=`formail -rtzxTo:`
FROM_ADDR=${FROM_ADDR:-nobody}

### GNU egrep doesn't run out of memory after just a few
### meta-characters during "egrep -f".  SunOS egrep does.
### Recommend using fgrep instead of egrep if blacklist file
### doesn't contain regular expressions.
BLACKLIST_GREP=${BLACKLIST_GREP:-${EGREP:-egrep}}

:0h
* $ ? test -s $BLACKLIST_FILE
* ? echo "$FROM_ADDR" | $BLACKLIST_GREP -i -f $BLACKLIST_FILE
{
        :0c
        $BLACKLIST_SPOOL

        EXITCODE=${BLACKLIST_EXITCODE:-77}

        :0h: $BLACKLIST_LOG$LOCKEXT
        | echo "`date` : $FROM_ADDR : `formail -zxSubject:`" >> $BLACKLIST_LOG
}

blacklist.data (in the $HOME directory):

user@thedomain\.com

Please let me know,
Randy Katz
--
Thank you,
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Randy A. Katz | Administrator | IOGuard
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