[X4U] "Blank" email example

[Linda]

Examples of the long headers from the "blank" emails that have started
landing with more frequency are pasted below... The "long" headers are
greatly truncated, though... oddly...

When I say "blank", I mean blank. No sender name listed in the "From"
column; <no subject> in the subject column. In the Preview pane, there's no
"from" and no "to" -- even the words "from" and "to" don't show up. In the
body of the email, there is no text at all, not even white on white.

And no, they are not from AOL. :-)
I can upload a screenshot if anyone wants...

1 =================================================

X-Auth-No: 
Return-Path: <ajpbnccqbjorfidarnell at asianavenue.com>
Received: from NETSERVER not authenticated [218.22.218.210]
    by smtp-send.myrealbox.com with NetMail SMTP Agent $Revision: 1.6 $ on
Linux;
    Tue, 18 Oct 2005 14:01:42 -0600
Received: from ileen (yearshear.com [240.222.204.220])
    by yearshear.com (8.9.3/8.9.3) with ESMTP id w[12

2 =================================================

X-Auth-No: 
Return-Path: <kforjujoey at operamail.com>
Received: from 151.155.5.204 not authenticated [219.157.159.98]
    by smtp-send.myrealbox.com with NetMail SMTP Agent $Revision: 1.6 $ on
Linux;
    Tue, 18 Oct 2005 08:39:18 -0600
Received: from localhost (promptitude at localhost)
    by callnetuk.com (4.2/0.2) with ESMTP id XAA962302[10

3  =================================================

X-Auth-No: 
Return-Path: <avztwp at yahoo.com>
Received: from khi77.pie.net.pk not authenticated [202.125.133.218]
    by smtp-send.myrealbox.com with NetMail SMTP Agent $Revision: 1.6 $ on
Linux;
    Sun, 16 Oct 2005 21:39:30 -0600
Received: (from Ashley Cote at localhost)
          by %CUSTOM_DOMAINS (8.7/8.6) with UUCP
      id AAA19990W[12

4  =================================================

X-Auth-No: 
Return-Path: <xllheisohunaaura at themail.co.uk>
Received: from 151.155.5.204 not authenticated [221.15.148.48]
    by smtp-send.myrealbox.com with NetMail SMTP Agent $Revision: 1.6 $ on
Linux;
    Tue, 18 Oct 2005 06:22:09 -0600
Received: (from rossana at localhost)
          by kegdateeh.com (8.2/8.2) with UUCP
      id AAA19990J[12

5  =================================================

X-Auth-No: 
Return-Path: <ryxghzdzgreinaldo at waitrose.com>
Received: from 66-215-25-222.dhcp.mtpk.ca.charter.com not authenticated
[66.215.25.222]
    by smtp-send.myrealbox.com with NetMail SMTP Agent $Revision: 1.6 $ on
Linux;
    Sun, 16 Oct 2005 08:27:41 -0600
Received: (from tressa Hatcher at localhost)
          by yastandoverone.com (8.4/8.7) with UUCP
      id AAA19990J[12

6  =================================================

X-Auth-No: 
Return-Path: <ickovsmssmron at freewire.net>
Received: from 151.155.5.204 not authenticated [222.175.147.162]
    by smtp-send.myrealbox.com with NetMail SMTP Agent $Revision: 1.6 $ on
Linux;
    Sat, 15 Oct 2005 12:31:16 -0600
Received: from localhost (amputate at localhost)
    by gmail.com (6.2/4.2) with ESMTP id XAA907594[10

7  =================================================

X-Auth-No: 
Return-Path: <aufmkyfxmscofdrita at waitrose.com>
Received: from host86-134-111-136.range86-134.btcentralplus.com not
authenticated [86.134.111.136]
    by smtp-send.myrealbox.com with NetMail SMTP Agent $Revision: 1.6 $ on
Linux;
    Tue, 18 Oct 2005 14:30:55 -0600
Received: from localhost (reef at localhost)
    by freemail.nl (0.2/8.2) with ESMTP id XAA994080[10