Undelivered Mail Returned to Sender

This is a MIME-encapsulated message.

--D4871A7E36.1208790072/zixvpm01.geisinger.edu
Content-Description: Notification
Content-Type: text/plain

This is the Proprietary program at host zixvpm01.geisinger.edu.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

			The Proprietary program

<[email protected]>: host 159.240.9.21[159.240.9.21] said: 550 5.7.1
    <[email protected]>... Command rejected (in reply to RCPT TO
    command)

--D4871A7E36.1208790072/zixvpm01.geisinger.edu
Content-Description: Delivery report
Content-Type: message/delivery-status

Reporting-MTA: dns; zixvpm01.geisinger.edu
X-Proprietary-Queue-ID: D4871A7E36
X-Proprietary-Sender: rfc822; [email protected]
Arrival-Date: Mon, 21 Apr 2008 10:01:08 -0500 (CDT)

Final-Recipient: rfc822; [email protected]
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Proprietary; host 159.240.9.21[159.240.9.21] said: 550 5.7.1
    <[email protected]>... Command rejected (in reply to RCPT TO
    command)

--D4871A7E36.1208790072/zixvpm01.geisinger.edu
Content-Description: Undelivered Message
Content-Type: message/rfc822

Received: from zixvpm01.geisinger.edu (ZixVPM [127.0.0.1])

--D4871A7E36.1208790072/zixvpm01.geisinger.edu--