How to whitelist ZDNet Tech Update Weekly?

Contact vjs@rhyolite.com by mail or use the form. · Sat Jan 18 22:14:37 UTC 2003

Some of our users subscribe to ZDNet Tech Update Weekly, an online
newsletter.  Each issue seems to have unique originator addresses.
The log file looks like this:

  VERSION: 3
  DATE: 01/17/03 10:00:35 CST
  IP: abv-sfo1-acmta6.cnet.com ::ffff:206.16.1.169
  HELO: ABV-SFO1-ACMTA6.CNET.COM
  env_From: <Online#3.34558.38363534323632.1.b@newsletter.online.com>  mail_host=newsletter.online.com.
  env_To: <dtreble@cc.umanitoba.ca>  addr=dtreble  dir=

  Received: from abv-sfo1-ac-agent4 (206.16.0.226) by ABV-SFO1-ACMTA6.CNET.COM (PowerMTA(TM) v1.5); Fri, 17 Jan 2003 08:05:49 -0800 (envelope-from <Online#3.34558.38363534323632.1.b@newsletter.online.com>)
  Message-ID: <3764895.1042819229348.JavaMail.root@abv-sfo1-ac-agent4>
  Date: Fri, 17 Jan 2003 08:00:28 -0800 (PST)
  From: ZDNet Tech Update Weekly <Online#3.34558.38363534323632.1@newsletter.online.com>
  To: dtreble@cc.umanitoba.ca
  Subject: A day at the office in 2013 [TECH UPDATE]

How can I whitelist this newsletter?  The IP addresses also vary.
The `mail_host' seems to be the same for all of them.

-- 
-Gary Mills-    -Unix Support-    -U of M Academic Computing and Networking-