Yahoo e-mail sent to another company?

I work for a company using Outlook 2007 and Microsoft Exchange. We have a user that periodically receives garbled e-mail messages from an Yahoo e-mail address. If there is an attachment, generally we just see the header in them message body and a whole string of characters where the attachment should be. This does not happen all the time but enough to concern us. Here is a sample:

From: xxxxx@yahoo.com [mailto:xxxxx@yahoo.com]

Sent: Wednesday, July 07, 2010 10:11 AM

Subject:

.WxPmHoymdS1E1ovgeKFfeEJlXdYDoah0sJkywqrRloT5NExt6eccYOIsXvT

uUOvXeDF.

Received: from [70.122.192.112] by web53802.mail.re2.yahoo.com via HTTP; Wed, 07 Jul 2010 10:10:38 PDT

X-Mailer: YahooMailRC/420.4 YahooMailWebService/0.8.104.274457

References: <F9CD53D80A8A9843A88AC1EDEEB1C49C01FFAF1A@S-Exchange1.icompany.com>

Date: Wed, 7 Jul 2010 10:10:38 -0700 (PDT)

From: x x<x@yahoo.com>

Subject: Re: subject

to: x x<x@x.com>

In-Reply-To: <F9CD53D80A8A9843A88AC1EDEEB1C49C01FFAF1A@S-Exchange1.x.com>

MIME-Version: 1.0

Content-Type: multipart/mixed; boundary="0-2034340211-1278522638=:93578"

X-Proofpoint-Virus-Version: vendor=fsecure engine=1.12.8161:2.4.5,1.2.40,4.0.166

definitions=2010-07-07_03:2010-02-06,2010-07-07,2010-07-07 signatures=0

X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 phishscore=0

bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx

engine=5.0.0-1005130000 definitions=main-1007070069

--0-2034340211-1278522638=:93578

Content-Type: multipart/alternative; boundary="0-1420381799-1278522638=:93578"

--0-1420381799-1278522638=:93578

Content-Type: text/plain; charset=utf-8

Content-Transfer-Encoding: quoted-printable

Frist name: x=0AMiddle Name: Xx=0ALast name: x=0A=0boDY message=

=0Aadobe form=

at.=0A=0A=0AThanks \=0x=0A=0A=0A=0A=0A_________________________=

_______=0AFrom: x<x@intelliquote.com>=0ATo: x@yahoo=

.com=0ASent: Tue, July 6, 2010 2:17:05 PM=0ASubject: xsubject=0A=0A =0AHi x,=0AI am following up on x=E2=80=99s body=

lication. Can you please verify xE2=80=99s =0Afull legal name? =0A=0A =

=0AThank you,=x=x=0A=0A5170 GoldenParkway=

=0Asomewhere, CA 11111=0Atoll free\fax: 111-111-1111=0Aemail: x@=

x.com=0A=0A*****************************************************=

*****************=0A=0AThis e-mail communication contains CONFIDENTIAL INFO=

RMATION WHICH ALSO MAY BE =0ALEGALLY PRIVILEGED and which is intended only =

for the use of the intended =0Arecipients identified above. If you are not =

the intended recipient of this =0Acommunication, you are hereby notified th=

at any use, dissemination, =0Adistribution, downloading, or copying of this=

communication is strictly =0Aprohibited. If you have received this communi=

cation in error, please immediately =0Anotify us by e-mail or by telephone =

at phne number and delete the communication =0Aand destroy all copies. Tha=

nk you for your cooperation.=0A=0A=0A

--0-1420381799-1278522638=:93578

Content-Type: multipart/related; boundary="0-904534753-1278522638=:93578"

--0-904534753-1278522638=:93578

Content-Type: text/html; charset=utf-8

Content-Transfer-Encoding: quoted-printable

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