MSN/Hotmail dropping PLUG emails

[Hans Fugal]

It has come to my attention that MSN/Hotmail/Windows Dead is being evil.

I send a message which is delivered via plug.org (e.g. a post to this
list). This is what shows up in the logs:

Mar 10 08:50:57 localhost postfix/smtp[32738]: 1B84CE3A5A: to=<foo at hotmail.com>, relay=mx1.hotmail.com[65.54.244.136], delay=0, status=sent (250  <20080310145055.GA24116 at falcon.fugal.net> Queued mail for delivery)

But, it never reaches its destination. Yes, we checked the junk mail
folder. The astute reader will notice that the above is a relay
situation, but I also tested it with telnet directly from plug.org:

$ telnet mx1.hotmail.com smtp
Trying 65.54.244.8...
Connected to mail.hotmail.com.
Escape character is '^]'.
220 bay0-mc1-f13.bay0.hotmail.com Sending unsolicited commercial or bulk e-mail to Microsoft's computer network is prohibited. Other restrictions are found at http://privacy.msn.com/Anti-spam/. Violations will result in use of equipment located in California and other states. Mon, 10 Mar 2008 08:16:43 -0700 
helo plug.org
250 bay0-mc1-f13.bay0.hotmail.com (3.5.0.22) Hello [63.108.71.211]
mail from: fugalh at plug.org
250 fugalh at plug.org....Sender OK
rcpt to: foo at hotmail.com
250 foo at hotmail.com 
data
354 Start mail input; end with <CRLF>.<CRLF>
From: hans at fugal.net

telnet test 
.
250 <BAY0-MC1-F13hM2ifG4000070be at bay0-mc1-f13.bay0.hotmail.com> Queued mail for delivery


Now, if you are subscribed with a hotmail or msn address (there are a
couple), and you do receive this email, PLEASE reply. But I'm guessing
those users will never see this.

This is truly evil behavior. Worse than SPF. Does anyone know if there's
any way to figure out what the problem is? It's possible there's a
slight misconfiguration or a workaround that would get us in the good
graces of msn, but I have no idea how to find it. Yes, I read through
http://postmaster.msn.com which aside from thoroughly depressing me had
no effect.

-- 
Hans Fugal ; http://hans.fugal.net
 
There's nothing remarkable about it. All one has to do is hit the 
right keys at the right time and the instrument plays itself.
    -- Johann Sebastian Bach