On Thu, 11 Dec 2003 10:50:16 -0500, Mitchell Baker
<[EMAIL PROTECTED]> posted to spamassassin-talk:
 > What I want to do is skip an message that originates from our domain... 
 > I have the following in the /etc/procmailrcfile:
 > :0:
 > * [EMAIL PROTECTED]
 > ${DEFAULT}
 > # From system.rose-hulman.edu
 > :0:
 > * [EMAIL PROTECTED]
 > ${DEFAULT}

A few comments.

 1. By delivering to DEFAULT from /etc/procmailrc you are not allowing
    your users to have their own .procmailrc do any further sorting of
    matching messages. Maybe this is not a problem.

 2. You should not rely on the assumption that spammers will not
    manage to figure out how to forge in a header which lets them get
    in. Maybe your MTA already is configured with such checks, and
    will reject any obvious forgeries. More power to you in that case.

    For many of us, the reverse is true: if the spammer forges in an
    incomplete From: header like

    From: phred <phred>

    then the MTA will "helpfully" fill in the missing information --
    with its own FQDN:

    From: phred <[EMAIL PROTECTED]>

 3. Yes, your rules can be refined a bit.

Ignoring point #2, try this:

  :0fw
  * ! ^From.*@([^ <>    .]+\.)*rose-hulman\.edu\>
  | spamc -options ...

If you want to add more conditions, you can do that:

  :0fw
  * ! ^From.*@([^ <>    .]+\.)*rose-hulman\.edu\>
  * ! ^From: <[EMAIL PROTECTED]>
  | spamc -options ...

Oh, and finally

 4. This is not the Procmail list

Hope this helps,

/* era */

-- 
The email address era     the contact information   Just for kicks, imagine
at iki dot fi is heavily  link on my home page at   what it's like to get
spam filtered.  If you    <http://www.iki.fi/era/>  500 pieces of spam for
want to reach me, see     instead.                  each wanted message.



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