[SA-exim] Side-effect involving mailing lists

[Rick Moen]

Quoting myself:

> OK, I'll look up the IPs of the problem MLM hosts, and append
> conditionals for them.  

I may be missing something important, but I see some pragmatic
obstacles, e.g., with Yahoo Groups.  A post from one such had Received 
lines like this:

  Received: from n21.grp.scd.yahoo.com ([66.218.66.77]:5601)
          by linuxmafia.com with smtp (Exim 4.22 #1)
          id 1AKtJf-0003Io-6J
          for <rick at linuxmafia.com>; Fri, 14 Nov 2003 21:49:51 -0800
  Received: from [66.218.66.98] by n21.grp.scd.yahoo.com with NNFMP; 15 Nov 
    2003 05:49:09 -0000
  Received: (qmail 92371 invoked from network); 15 Nov 2003 05:49:06 -0000
  Received: from unknown (66.218.66.217)
    by m15.grp.scd.yahoo.com with QMQP; 15 Nov 2003 05:49:06 -0000
  Received: from unknown (HELO n3.grp.scd.yahoo.com) (66.218.66.86)
    by mta2.grp.scd.yahoo.com with SMTP; 15 Nov 2003 05:49:06 -0000
  Received: from [66.218.67.139] by n3.grp.scd.yahoo.com with NNFMP; 15 Nov 2003
  05:48:24 -0000
  Received: (qmail 59930 invoked from network); 14 Nov 2003 20:00:35 -0000
  Received: from unknown (66.218.66.216)
    by m12.grp.scd.yahoo.com with QMQP; 14 Nov 2003 20:00:35 -0000
  Received: from unknown (HELO n21.grp.scd.yahoo.com) (66.218.66.77)
    by mta1.grp.scd.yahoo.com with SMTP; 14 Nov 2003 20:00:35 -0000
  Received: from [66.218.67.177] by n21.grp.scd.yahoo.com with NNFMP; 14 Nov 
    2003 20:00:35 -0000 

That is, it seems very likely that I'd want to whitelist the entire
class C, not just 66.218.66.98.  Mind posting some clues about that?

(If I'm being excessively lazy, please do say so.  I'm not expecting
handholding.  Honestly.)

-- 
Cheers,                                      "My file system's got no nodes!"
Rick Moen                                    "How does it shell?"
rick at linuxmafia.com